Nature — Spain — NextOnTrip

Laguna del Retamar

Pedro Muñoz

Laguna del Retamar is a seasonal saline lagoon in the municipality of Pedro Muñoz, in the province of Ciudad Real, Castile-La Mancha. It forms part of the Pedro Muñoz lagoon complex, together with the Laguna de Vega (also called Laguna del Pueblo) and the Laguna de Navalafuente. The whole complex sits within the Záncara river basin, a tributary of the Guadiana, in an area known as La Mancha Húmeda — the "wet Mancha," a scattering of inland wetlands set against the otherwise dry, vine-covered plains of the region. What should you know before visiting? Retamar covers roughly 90 hectares, though its appearance changes dramatically through the year. It's an endorheic, strongly seasonal lagoon: during dry spells it can dry out completely, leaving behind a cracked, salt-crusted basin. Water levels depend almost entirely on rainfall, so the best time to see an actual sheet of water is winter and early spring, right after the rainy season. The Pedro Muñoz lagoon complex has been under protection for decades. The Vega lagoon was designated a wildlife refuge back in 1988, the whole area gained Special Protection Area for Birds (ZEPA) status the following year, and in 1993 it was listed as a wetland of international importance under the Ramsar Convention. The nature reserve itself was formally established in 2002. What will you see there? Retamar's landscape differs from a typical freshwater lake. Continental saline grasslands dominate, along with halophilic vegetation — plants adapted to salty soil, including succulents that form a distinctive silvery carpet along the shoreline. This is a habitat of real ecological significance, protected at European level as a priority habitat type. The lagoon and its surroundings are an important stopover for waterbirds and waders, especially during seasonal migration. The dry, salt-flat plain and the scrub around it stand in sharp contrast to the flat farmland typical of La Mancha, making it a rewarding stop for birdwatchers and landscape photographers alike. How do you get there? Laguna del Retamar lies within the municipality of Pedro Muñoz, a small town in Ciudad Real province, well connected to the rest of the La Mancha region. The easiest way to visit the lagoon complex is as a short trip out from Pedro Muñoz itself, following the local tracks and access roads that link the different lagoons. Bring water and sun protection — the terrain is open, with virtually no shade. When is the best time to come? Autumn, winter and early spring are the best seasons to visit, when water levels are highest and the lagoon looks its best, drawing in waterbirds. In summer, especially during dry years, the water can disappear entirely, and the saline vegetation and geological character of the terrain take center stage instead. Frequently Asked Questions Does Laguna del Retamar always have water? No. It's a seasonal, rainfall-dependent lagoon that can dry out completely in summer or during dry years. How large is the lagoon? It covers around 90 hectares, though the actual extent of standing water varies with the season. Is it a protected area? Yes. Laguna del Retamar is part of a nature reserve established in 2002, and was previously granted ZEPA status (1989) and Ramsar wetland listing (1993). What other lagoons are nearby? Retamar is one of three lagoons in the Pedro Muñoz complex, alongside the Laguna de Vega (del Pueblo) and the Laguna de Navalafuente.

Laguna de la Vega

Pedro Muñoz

Laguna de la Vega (also known as Laguna del Pueblo) is the most important of three lagoons in the wetland complex at Pedro Muñoz, a small town in the northeastern part of Ciudad Real province, in the heart of the La Mancha region known as la Mancha Húmeda ("the Wet Mancha"). Unlike several neighboring endorheic lagoons that can dry out completely in summer, this one holds water year-round, fed by treated water from the nearby Pedro Muñoz wastewater treatment plant. That steady water supply is exactly what makes the site so attractive to birds — and to the people who come to watch them. How do you get there? The lagoon sits right on the edge of Pedro Muñoz itself, making it easy to reach without a long detour into open countryside. The whole lagoon complex — Laguna de la Vega and the two other lagoons — lies within the town's municipal boundaries, set in the flat, agricultural landscape typical of La Mancha. The town of Pedro Muñoz is the best starting point, with marked access paths leading to the lagoons. What will you see? Laguna de la Vega is above all a haven for birdwatchers. Two observation hides have been set up on-site, letting visitors watch birdlife discreetly without disturbing it. Species recorded on and around the water include black-necked grebe, red-crested pochard, black-winged stilt, black-headed gull, and white-winged tern — birds typical of the inland brackish wetlands of Castilla-La Mancha. Because the water level stays constant, the lagoon also serves as an important stopover for migratory birds, keeping it lively for much of the year. Next to the lagoons stands an interpretation center, where visitors can learn more about the wetland ecosystem, its history, and its ecological significance for the region. The entire Pedro Muñoz lagoon complex holds Biosphere Reserve status and has also been designated a Special Protection Area for birds — confirmation of the site's standing within Europe's network of protected natural areas. When should you visit? For birdwatchers, the spring and autumn migration periods bring the greatest variety of species and the highest numbers of birds. In summer, when some of the surrounding, less stable lagoons dry up, Laguna de la Vega remains one of the few places in the area where waterbirds can still find refuge — a good time to see concentrated populations gathering. Early morning hours are best for observation, when birds are most active and visitor numbers are still low. Frequently Asked Questions Does the lagoon dry up in summer? No. Unlike some of the neighboring lagoons in the complex, Laguna de la Vega holds water all year round thanks to the inflow of treated wastewater from the nearby treatment plant. What birds can you see here? Visitors can spot species such as black-necked grebe, red-crested pochard, black-winged stilt, black-headed gull, and white-winged tern, with many more waterbirds passing through during migration seasons. Is there visitor infrastructure on-site? Yes — two observation hides are set up around the lagoon, along with an interpretation center dedicated to the natural history of the lagoon complex. What protected status does this site have? The Pedro Muñoz lagoon complex, including Laguna de la Vega, is part of the Mancha Húmeda Biosphere Reserve and is designated a Special Protection Area for birds.

Laguna del Comisario

Puerto Real

Laguna del Comisario is a seasonal inland lagoon lying just west of Puerto Real, in the province of Cádiz, within the Bahía de Cádiz. It forms part of the protected Complejo Endorreico de Puerto Real (Endorheic Complex of Puerto Real) and has held the status of Integral Zoological Reserve since 1987, under a law passed by the Andalusian regional parliament. What is this place? The lagoon covers just under 41 hectares and sits on albariza, the pale, lime-rich soil typical of this part of Andalusia, which holds rainwater well. It is a very shallow, flat-bottomed wetland fed mainly by surface runoff. During periods of peak flooding, excess water drains out through the Arroyo del Yesero stream, which acts as a natural overflow. The lagoon's defining feature is its seasonal rhythm: it fills with water during the cooler months and typically dries out completely in summer. This is a common pattern for Mediterranean wetlands in the region, and it's worth planning a visit around it. What will you see? Marsh vegetation surrounds the water — reeds, rushes, tamarisk, bulrushes and sedges. Further from the waterline, the landscape shifts into Mediterranean scrub dominated by wild olive, mastic trees and dwarf fan palms. Birds, however, are the main draw. The area is designated a Special Protection Area for Birds (ZEPA) and serves as both a nesting and wintering site. Species recorded here include little egrets, ospreys, marsh harriers and white storks. For birdwatchers, this is one of the more rewarding spots around the Bay of Cádiz, particularly outside the dry summer months when the lagoon holds water. How do you get there? Laguna del Comisario lies in the pre-coastal stretch of the Bahía de Cádiz, west of the town of Puerto Real. It's one of several neighboring lagoons within the same complex, alongside Laguna de San Antonio and Laguna del Taraje. Since the site is a protected nature reserve, it's worth checking local signage and marked trails beforehand to avoid straying into restricted areas. When is the best time to visit? Autumn, winter and early spring are the best times to visit, when the lagoon holds water and waterbirds make the most use of the habitat, both wintering species and those passing through on migration. In summer the lagoon usually dries out completely, so the landscape looks very different and there's little birdlife to observe. Frequently Asked Questions Does Laguna del Comisario always have water? No. The lagoon is seasonal — it fills with water in autumn and winter and typically dries out completely during summer. What birds can you see here? The area is a haven for waterbirds and wading birds, including little egrets, ospreys, marsh harriers and white storks. It holds Special Protection Area status for birds. Is it a standalone site or part of a larger area? Laguna del Comisario belongs to the Complejo Endorreico de Puerto Real, which includes several neighboring lagoons such as Laguna de San Antonio and Laguna del Taraje. Is the lagoon legally protected? Yes, it has held Integral Zoological Reserve status since 1987, established by a law of the Andalusian regional parliament.

Lago El Puerto

Cangas del Narcea

Lago El Puerto is a high-mountain lake in the municipality of Cangas del Narcea, tucked away in the mountains of southwestern Asturias. Sitting at an altitude of over 1,500 meters, it is the highest lake within the entire municipality. It lies within the Fuentes del Narcea, Degaña e Ibias Natural Park, one of Asturias's largest protected areas and a UNESCO Biosphere Reserve since 2003. Where exactly is Lago El Puerto? The lake sits in the upper basin of the Narcea and Ibias rivers, inside a natural park that spans the municipalities of Cangas del Narcea, Degaña and Ibias. This is rugged, sparsely populated mountain terrain, marked by deep valleys and wide stretches of forest and high-altitude pasture, largely undeveloped for tourism. Not far away lies the celebrated Muniellos forest, considered one of the best-preserved oak forests in Europe. How do you get there? There is no direct road access to Lago El Puerto — reaching it means committing to a demanding hike or mountain bike ride. The route climbs out of the town of Cangas del Narcea into the high mountains, gaining significant elevation over rough, rocky ground. Given the altitude and the nature of the climb, it's worth planning the trip with plenty of time, water, and proper trekking footwear — this is not an outing for beginners. What will you see once you arrive? The reward for the effort is a still sheet of water framed by bare, rocky slopes and high mountain pastures typical of this range's upper reaches. The surrounding area is one of the last strongholds of the brown bear in the Cantabrian Mountains, and the forests and moorland within the natural park also form one of the most important breeding grounds for the Cantabrian capercaillie. The lake itself sits in a genuinely wild, quiet corner of the park — there's no visitor infrastructure here, which for many is exactly the point. When is the best time to visit? Given the altitude and mountainous terrain, late spring, summer and early autumn are the best windows for a visit, when trails are clear and weather is more stable. In winter and early spring, snow lingers on the higher slopes of this part of Asturias, which can make reaching the lake difficult or impossible without proper mountaineering preparation. What should you know before heading out? Cangas del Narcea is one of the largest municipalities in Asturias by land area, but also one of the least developed outside its main towns, so infrastructure away from the center is minimal. Before setting off for Lago El Puerto, it's worth carrying a topographic map or offline navigation app, letting someone know your planned route, and checking the mountain weather forecast, which can shift far more quickly than conditions in the valleys below. Frequently Asked Questions Can you drive to Lago El Puerto? No. The lake sits high in the mountains and can only be reached on foot or by mountain bike, via a route starting from Cangas del Narcea. Is the route suitable for beginners? It isn't recommended for inexperienced hikers. The climb involves substantial elevation gain and rough terrain, so good fitness, hiking experience and proper gear are all necessary. How high up is the lake? Lago El Puerto sits above 1,500 meters in altitude, making it the highest lake in the municipality of Cangas del Narcea. Is wildlife a concern in the area? Yes. The natural park is one of the last refuges of the brown bear in the Cantabrian Mountains and a habitat for the Cantabrian capercaillie, so visitors should stay on marked routes and stay alert.

estany d'Areste

Alins

Estany d'Areste is a small glacial lake sitting at roughly 2,396 metres above sea level in the Vall Ferrera valley, within the municipality of Alins (Pallars Sobirà), in the Catalan Pyrenees. It lies inside the Alt Pirineu Natural Park, one of the wildest and least populated corners of the Spanish Pyrenees. Where exactly is the lake? The lake sits high in the Vall Ferrera valley, at the foot of Pic d'Areste (2,790 m), a summit rising to its northeast. The barranc d'Areste stream flows out of the lake and down the valley, feeding the local water system. The whole area falls within the Alt Pirineu Natural Park, which protects some of the most rugged and least altered high-mountain terrain in Catalonia. How do you get there? Estany d'Areste sits in high-mountain terrain reached on foot from the Vall Ferrera valley, starting from Alins or one of the neighbouring villages in the municipality. The valley is also a gateway to Pica d'Estats, Catalonia's highest peak, and the routes heading that way pass close to the barranc d'Areste. Given the altitude and terrain, this is a route for hikers prepared for a multi-hour trek in high-mountain conditions, with proper footwear, solid navigation skills, and a reliable weather forecast. Weather at this altitude in the Pyrenees can shift quickly, so an early morning start is the safer choice. What will you see there? This is an intimate high-altitude lake, typical of the glacial tarns scattered across the Pyrenees — set against a rocky, austere landscape with views toward the Pic d'Areste massif. The surroundings rank among the most remote parts of the Alt Pirineu Natural Park, meaning silence, open space, and genuine contact with high-mountain wilderness, far from crowded trails. It suits hikers looking for raw alpine scenery rather than tourist infrastructure — there are no buildings or services in this zone. When should you visit? Sitting above 2,300 metres, the lake is realistically accessible only in the summer season, roughly from June/July through September, once snow has cleared enough to make the approach safe. In spring and autumn, the higher parts of the valley can still hold snow or already be covered again, and in winter the area is essentially off-limits without proper high-mountain experience and gear. Summer months offer the longest days and the most stable conditions for the hike. Frequently Asked Questions How high up is Estany d'Areste? The lake sits at approximately 2,396 metres above sea level, in the upper reaches of the Vall Ferrera valley. Which protected area is the lake part of? Estany d'Areste lies within the Alt Pirineu Natural Park, in the municipality of Alins, in the Pallars Sobirà region. Are there other landmarks nearby? Yes — Pic d'Areste (2,790 m) rises close by, and trails in the area lead toward Pica d'Estats, Catalonia's highest summit. Can you reach the lake without mountain experience? Given the altitude and terrain, the hike calls for good fitness and basic high-mountain trekking preparation — it is not a beginner-friendly stroll.

Castiñeiras Lake

Marín

Castiñeiras Lake is an artificial reservoir set on the slopes of Mount Cotorredondo, straddling the border between the municipalities of Vilaboa and Marín in the province of Pontevedra, Galicia. Just 9 kilometres from the city of Pontevedra, it makes an easy half-day escape for anyone looking to trade the busy Rías Baixas coastline for quiet inland hills. How do you get there? The lake sits in the hilly interior separating Marín and Vilaboa from the Pontevedra valley, in the same range that gives the nearby Mount Castiñeiras its name — and the lake its own. The most practical way in is by car from Pontevedra or Marín, following roads that wind through woodland and pasture typical of Galicia's inland countryside. Because the terrain climbs steadily toward the reservoir, cyclists and hikers covering the final stretch on foot should budget extra time for the ascent. What will you see? The centerpiece is the reservoir itself — a man-made lake wrapped in the green slopes of Cotorredondo. Unlike Galicia's rare natural lakes, Castiñeiras was created as a dam, and that origin shows in the regular shape of its shoreline and the way the water fills the valley between the surrounding hills. The surrounding landscape keeps the rural, lightly developed feel typical of inland Pontevedra province: forested slopes, modest hills, and a stillness that contrasts sharply with the bustling coast just a short drive away. For anyone interested in the local topography, the neighbouring Mount Castiñeiras — the reservoir's namesake — is a useful reference point on the horizon. This is a destination for people drawn to quiet walks and unhurried nature-watching rather than built-up tourist infrastructure; the lake feels intimate and unpolished rather than commercial. When should you visit? Pontevedra province has a mild Atlantic climate, with warm summers and the wetter, rainier autumn-winter stretch typical of Galicia. Spring and summer offer the best conditions for exploring the area around the lake, both for weather and for visibility across the surrounding hills — days are longer and the access roads and paths stay drier and easier to walk. Autumn and winter can bring persistent rain, which makes reaching the more remote corners of the hillside less comfortable. Why is it worth the trip? Castiñeiras Lake suits travellers looking for a breather from the coastal crowds — its proximity to Pontevedra and Marín makes it easy to pair a city visit with a short detour into wilder, hillier terrain. It's also a good illustration of how water management has shaped Galicia's landscape: reservoirs like this one serve practical purposes such as water storage, while quietly becoming part of the region's scenic identity. Frequently Asked Questions Is Castiñeiras Lake a natural lake? No — it's an artificial reservoir located on Mount Cotorredondo, on the border between the municipalities of Vilaboa and Marín. How far is the lake from Pontevedra? About 9 kilometres, making it an easy day trip from the city. Which municipalities does the lake border? It lies on the boundary between Vilaboa and Marín, within Pontevedra province. Is there much tourist infrastructure around the lake? Not really — this is a low-key, natural spot best suited to visitors who value quiet scenery over built-up facilities.

Estanys de Comalesbienes

la Vall de Boí

Estanys de Comalesbienes is a cluster of glacial lakes in the municipality of la Vall de Boí, tucked into the Catalan Pyrenees within the Aigüestortes i Estany de Sant Maurici National Park. The lakes sit in the Comalesbienes valley, a glacially carved side branch of the wider Vall de Boí, in the Alta Ribagorça region. How do you get there? The lakes lie in a high mountain cirque above 2,000 metres, in the upper reach of the Comalesbienes valley. That upper section falls within the national park itself, while the lower stretch of the valley is part of the park's peripheral zone, where access rules are somewhat more relaxed. The usual starting point is near the Cavallers Dam (Presa de Cavallers), at roughly 1,743 metres of altitude. From there the trail climbs steadily along the valley floor until it reaches the rocky threshold that opens onto the lake-filled cirque. This is proper mountain terrain: expect a sustained climb, uneven ground, and weather that can shift quickly at altitude, so trekking boots and layered clothing are essential. Reaching the Vall de Boí itself, and from there the road toward the dam, means driving in on local access roads serving the valley's villages. During the summer high season, vehicle access near the reservoir is sometimes restricted because of park traffic, so it's worth checking current access rules before setting off by car. What will you see? The centrepiece of the cirque is a modest summit rising in the middle of the basin, at around 2,649 metres. On its eastern and southern flanks sit the two main Estanys de Comalesbienes, along with several smaller pools scattered across the rocky ground. The scenery is classic high Pyrenees: bare granite ridges, grassy patches lower down, and glacial lakes whose still, clear water mirrors the surrounding peaks. The remoteness and quiet of this corner of Aigüestortes make it a draw for hikers looking to escape the busier trails around Estany de Sant Maurici. Keep in mind this is genuinely wild terrain — there's no tourist infrastructure right at the lakes themselves, no refuges or fenced viewpoints. It suits visitors who are comfortable navigating open mountain ground on their own. When should you visit? Summer, from June through September, is the best window, once the snow at higher elevations has melted enough to keep the trail fully passable. Earlier in the season, snow patches can still linger on the higher ground and around the passes, making route-finding harder and the walk slower. In autumn, days shorten and Pyrenean weather turns more quickly, so an early start and a fresh forecast check are worth building into the plan. Frequently Asked Questions Is it hard to get to Estanys de Comalesbienes? Reaching the trailhead near the Cavallers Dam is straightforward by local road from the Vall de Boí. From there it's on foot only — the trail climbs steadily up the valley and calls for a reasonable level of fitness. Are there any refuges near the lakes? No, there's no tourist infrastructure right at the lakes. This is wild high-mountain terrain inside the national park, so bring your own food and water. Is the route suitable for beginners? Given the elevation gain, the altitude, and how quickly mountain weather can change, this is a fairly demanding route best suited to hikers with prior mountain experience. Are the lakes entirely inside the national park? The upper part of the Comalesbienes valley, including the lakes, lies within the Aigüestortes i Estany de Sant Maurici National Park, while the lower part of the valley falls under the park's peripheral protection zone.

estany Xic

la Vall de Boí

Estany Xic is a small glacial lake tucked into the municipality of La Vall de Boí, deep in the Catalan Pyrenees, within the Aigüestortes i Estany de Sant Maurici National Park. The name explains itself — "estany" means lake in Catalan, and "xic," a word from the local Ribagorçan dialect, means "small." That modest scale, combined with the raw high-mountain setting around it, is exactly what draws hikers looking for a quieter alternative to the park's more famous, more crowded lakes. Where exactly is Estany Xic? The lake sits in the high-mountain terrain of the Vall de Boí valley, one of the park's two main access valleys (the other being the Espot side). Aigüestortes is Catalonia's only national park and one of the very few in Spain with full protected status. Its landscape was carved by glaciers, leaving behind jagged granite ridges, glacial cirques, and dozens of lakes of varying size — Estany Xic being one of the smaller ones scattered across this terrain. How do you get to Estany Xic? Access inside the park is tightly regulated: private vehicles are not allowed beyond designated points, a rule meant to protect the fragile high-mountain ecosystem. From towns in the Vall de Boí valley, such as Boí itself, visitors typically rely on authorized local transport (like off-road taxi services) to reach a starting point, after which marked hiking trails lead further into the park. Reaching Estany Xic itself therefore means a mountain hike — it's worth planning the route ahead of time, checking current conditions at the park's information office, and bringing proper trekking gear, since the terrain sits at high altitude and weather can shift quickly. What will you see at Estany Xic? This is a spot for travelers who value quiet and raw mountain scenery over built-up tourist infrastructure. Like the other glacial lakes in the region, its water mirrors the surrounding peaks and rock faces, and its small size gives it a hidden, intimate feel compared to the park's larger lakes. The surrounding landscape shows the classic signs of the high Pyrenees: steep slopes, alpine vegetation, and visible traces of glacial erosion. The park is also known for its high-mountain wildlife, though spotting it depends on timing, season, and a bit of luck. When is the best time to visit? The best window for exploring the high-altitude parts of the park, including the area around Estany Xic, runs from late spring through early autumn, when trails are clear of snow and weather conditions are most stable. In early spring and late autumn, snow can still linger at higher elevations, making the approach difficult or impassable. Whatever the season, it's worth checking current trail conditions and any access restrictions at the park's information office before setting out. Frequently Asked Questions Can you drive directly to Estany Xic? No. Private vehicle access inside the park is restricted to protect the environment — the final stretch has to be covered on foot or via authorized local transport. Can you camp overnight by the lake? Aigüestortes National Park is under strict protection, and overnight camping is governed by specific park rules — check the current regulations before planning an overnight stay. Where does the name "Xic" come from? It's a word from the local Ribagorçan Catalan dialect meaning "small," a direct reference to the lake's modest size compared to other lakes in the park. Is the hike to Estany Xic difficult? The approach crosses high-mountain terrain, so it calls for reasonable fitness, sturdy footwear, proper trekking gear, and a check of weather conditions before heading out.

estany de Dellui

la Vall de Boí

Estany de Dellui is a high-mountain glacial lake in the municipality of La Vall de Boí, tucked deep inside the Aigüestortes i Estany de Sant Maurici National Park in the Catalan Pyrenees. Where is it and how do you get there? The lake sits at roughly 2,350 metres above sea level, in the Vall de Sant Nicolau, within the Alta Ribagorça comarca. Most hikers start from Planell d'Aigüestortes (1,755 m), reached from the village of Boí by 4x4 taxi, since private vehicle access is restricted inside this part of the park. An alternative is to start on foot from the La Molina car park (1,380 m) and walk the whole valley approach. From Planell d'Aigüestortes, the climb to Estany de Dellui takes about 3 hours one way, with roughly 600 metres of ascent — a demanding but non-technical hike that requires no climbing gear. The route first heads toward Estany Llong, then climbs gradually past a group of smaller ponds, the Estanyets de Dellui, sitting lower down between 2,308 and 2,324 metres and draining into the Barranc de Dellui stream. Only after this stretch does the path rise onto the broad, rocky plateau where the main lake lies. What will you see there? Estany de Dellui is known for its crystal-clear water and stark high-mountain scenery, framed by rocky spires and granite ridges typical of the highest reaches of Aigüestortes. The summit of Pic de Dellui (2,802 m) dominates the skyline above it. Nearby, toward the Collada de Dellui pass (2,577 m), lies another lake, Estany de la Collada (2,453 m). The pass itself is a natural gateway toward Estany de Nariolo and Estany Tort, making it possible to string together a longer route linking several lakes in one trip. This part of the park feels considerably wilder and quieter than the well-trodden trails around Estany de Sant Maurici — a good pick for hikers looking for solitude and genuine alpine terrain away from the crowds. When should you go? Given the altitude (2,350 m) and terrain, the realistic hiking season for Estany de Dellui runs from June to September, when the trails are clear of snow. Outside that window, it's worth checking current conditions at a park information point, since the higher parts of the valley can hold snow well into early summer. Frequently Asked Questions Can you drive to Estany de Dellui? No. The area around the lake lies within the protected core of the national park, where private car access is restricted. You can reach the starting point, Planell d'Aigüestortes, by 4x4 taxi from Boí, and continue on foot from there. How long does the hike take? From Planell d'Aigüestortes, expect around 3 hours of walking one way, with about 600 metres of elevation gain. Is the trail technically difficult? No climbing equipment is needed, but the distance and altitude gain make it a route for reasonably fit hikers with proper trekking footwear. Are there other lakes worth visiting nearby? Yes. The route passes the Estanyets de Dellui along the way, and beyond the Collada de Dellui pass you'll find Estany de la Collada, Estany de Nariolo and Estany Tort, allowing for a longer combined hike.

estanh deth Pòrt de Colomèrs

Naut Aran

Estanh deth Pòrt de Colomèrs is a high-mountain lake sitting at 2,415 meters above sea level, within the municipality of Naut Aran, in the Val d'Aran region of Catalonia, deep in the Spanish Pyrenees. The lake belongs to the celebrated Circ de Colomèrs, a glacial cirque holding more than 50 lakes and smaller tarns of varying size and shape. Estanh deth Pòrt de Colomèrs itself covers roughly 3.3 hectares and lies at the foot of the Pòrt de Colomèrs pass (2,603 m), close to the Colomèrs peak (2,933 m). These two landmarks give the lake its raw, high-altitude setting of bare ridgelines and scree slopes typical of this part of the Pyrenees. How do you get there? The trailhead is the parking area along the road to the Banhs de Tredos thermal baths, at 1,765 meters. From there, the route climbs through the Aiguamòg valley, passing a succession of rock steps and smaller lakes belonging to the Colomèrs complex before reaching the lake itself. The ascent takes around 4 hours 30 minutes, making it a demanding outing best suited to hikers with solid fitness and mountain experience. Starting early is a good idea, since the return follows the same route and daylight matters at this altitude. Given the elevation and terrain, this is not a route for beginners or families with small children. Sturdy footwear, good route-finding skills, and checking the weather forecast beforehand are all essential — conditions in the higher reaches of the Pyrenees can shift quickly. What will you see? The scenery around Estanh deth Pòrt de Colomèrs is classic high Pyrenean landscape: bare rock ridges, shattered scree, patches of snow that can linger well into summer, and a turquoise-to-deep-blue lake surface set against the grey slopes surrounding it. The lake holds fish, which makes it a popular spot among anglers visiting Val d'Aran, though swimming in Pyrenean alpine lakes is generally discouraged or prohibited to protect these fragile ecosystems. The hike through the Colomèrs cirque itself is one of the more spectacular walks in the region — the route passes lake after lake of varying size, giving a real sense of the scale and variety of this glacial complex. For many hikers, the walk up the Aiguamòg valley, with new lakes revealing themselves along the way, is just as rewarding as reaching the final destination. When should you visit? Given the altitude (2,415 m) and alpine climate, summer — from July through September — is the best window for this hike, when the trail is free of snow and weather is most stable. In spring and late autumn, snow patches can still linger in the higher sections, making the route considerably harder and requiring extra equipment. In winter, the trail is effectively inaccessible without proper high-mountain experience and gear. Frequently Asked Questions How long does it take to reach the lake? The climb from the Banhs de Tredos parking area (1,765 m) to Estanh deth Pòrt de Colomèrs (2,415 m) takes around 4 hours 30 minutes. Can you swim in the lake? Swimming is generally discouraged or prohibited in most high-altitude Pyrenean lakes, including those of the Colomèrs complex, to protect their fragile ecosystems. Is fishing allowed in the lake? Yes, the lake holds fish and is a popular destination for anglers visiting Val d'Aran, though it's worth checking local fishing regulations before setting out. Where exactly is the lake located? Estanh deth Pòrt de Colomèrs lies in the municipality of Naut Aran, in Val d'Aran, at the foot of the Pòrt de Colomèrs pass (2,603 m), near the Colomèrs peak (2,933 m).

Estany de Contraix

la Vall de Boí

Estany de Contraix is a glacial mountain lake in the municipality of la Vall de Boí, tucked away in the upper reaches of the Vall de Contraix valley, deep inside the Aigüestortes i Estany de Sant Maurici National Park in the Catalan Pyrenees. What makes this place special? The lake sits at roughly 2,573 metres above sea level, making it one of the higher bodies of water in this part of the park. It covers close to 10 hectares and reaches a depth of up to 60 metres — sizeable numbers for a glacial lake in the Pyrenees. It was carved out by glacial action thousands of years ago, leaving behind a rocky basin now filled with the cold, greyish-turquoise water typical of high-altitude cirque lakes. Administratively the area belongs to the comarca of Alta Ribagorça, and the lake itself lies within one of Spain's most protected natural areas: Aigüestortes is the only national park in Catalonia and one of the very few places in the country where human intervention is kept to an absolute minimum. How do you get there? Estany de Contraix sits within the park's strict protection zone, which has no road access whatsoever — the only way in is on foot, along a mountain trail that crosses the Collet de Contraix (Contraix Pass). Hikers typically set off from villages in the Vall de Boí, such as Boí or Taüll, which serve as the main trailheads for most routes in this part of the park. The walk to the lake is a proper mountain hike with substantial elevation gain, usually tackled as a full-day outing or as one leg of a longer multi-day trek. Estany de Contraix lies along one of the long-distance mountain routes that cross the park, popular with experienced hikers planning multi-day traverses of the Pyrenees. Check the weather forecast and trail conditions before setting out, since conditions at altitude can change very quickly. What will you see? The scenery around the lake is classic high Pyrenean landscape: bare granite ridges, rocky slopes, patches of snow that can linger even into summer, and a silence broken only by wind and running water. Less known than the famous Estany de Sant Maurici, Estany de Contraix offers equally striking views with far fewer visitors — a spot for travellers looking for solitude and genuine contact with the wild Pyrenees. Wildlife typical of the park can be spotted in the area, including Pyrenean chamois, while birds of prey often circle above the water. The Vall de Contraix valley that cradles the lake is part of the park's broader network of glacial valleys, dotted with dozens of similar lakes. When should you visit? Given the altitude and mountainous terrain, summer — from June to September — is the best window, when trails are free of snow and weather is at its most stable. In spring and autumn, snow can still linger at higher elevations, making the approach considerably harder. Frequently Asked Questions Can you drive to Estany de Contraix? No. The lake lies inside the national park's protected zone, which has no road access — the only way in is on foot via the trail over the Collet de Contraix. How long does it take to reach the lake? It's a mountain route with significant elevation gain, usually covered as a full-day hike or as part of a multi-day trek through the park. Can you swim in the lake? The water in Aigüestortes' high-altitude lakes stays very cold year-round, and swimming inside the national park is subject to nature-protection restrictions — it's best treated as a scenic stop rather than a swimming spot. Are there mountain refuges nearby? The trails through this part of the park connect to a wider network of multi-day routes served by mountain refuges — it's worth booking accommodation in advance, especially during the summer season.

Estany de la Cabana

Espot

Estany de la Cabana is a high-mountain glacial lake near Espot, inside the Aigüestortes i Estany de Sant Maurici National Park, in the Pallars Sobirà region of Catalonia. Sitting at roughly 2,180 metres above sea level, it lies between the Estany de Ratera and Estany Gran d'Amitges lakes, surrounded by the rugged ridgelines and glacial cirques typical of this stretch of the Pyrenees. Where exactly is the lake? The lake sits in the western part of the national park, part of a chain of lakes that links the Sant Maurici valley with higher glacial basins. Because of its position next to Estany de Ratera and Estany Gran d'Amitges, Cabana is rarely visited on its own — it's usually one stop on a longer hike through the lakes above Sant Maurici. How do you get there? The starting point is the village of Espot. By car, you can drive up to the Prat de Pierró car park, from which a marked trail continues on foot — reaching the Sant Maurici area takes about an hour to ninety minutes on an easy, well-signposted path. An alternative is the 4x4 taxi service that runs from Espot straight to the shore of Estany de Sant Maurici, cutting the approach down to around 20 minutes. From there, reaching Estany de la Cabana and the neighbouring Estany de Ratera requires a further, more demanding stretch on foot, over rocky mountain terrain — sturdy trekking shoes are a must. Trails in this part of the park are marked with yellow waymarks. What will you see once you're there? The lake itself is the main draw — clear, cold water set among rock and alpine meadow, characteristic of the high-altitude glacial lakes scattered across this part of the Pyrenees. Nearby, Estany de Ratera (2,136 m) hosts one of the park's more dramatic waterfalls, connecting the hanging Ratera valley with the main Sant Maurici valley below. The whole area is rich in rocky ridgelines, viewpoints over the surrounding peaks, and the mosaic of lakes, streams and high mountain pastures that defines Aigüestortes. When is the best time to visit? Hiking season in this part of the park runs from summer into early autumn, once trails are clear of snow and high-altitude weather is more settled. Pyrenean weather can shift quickly, though — even in summer, temperatures above 2,000 metres run noticeably cooler than in the valley, so warm layers and a rain shell are worth packing regardless of the season. Who is this route suited to? This is a route for hikers who enjoy mountain walking and don't mind a longer, more demanding climb. Families and less experienced walkers often stick to the easier loop around Estany de Sant Maurici, leaving the higher lakes, Cabana included, to more seasoned hikers. Frequently Asked Questions Can you drive directly to the lake? No. The final stretch to Estany de la Cabana is on foot only. By car you can reach the Prat de Pierró car park, and from there it's either a hike along the marked trail or a shorter 4x4 taxi ride up to Sant Maurici. How long does it take to reach the lake? Getting to the Sant Maurici area takes about an hour to ninety minutes on foot, or roughly 20 minutes by 4x4 taxi. From there, reaching Estany de la Cabana and Estany de Ratera adds a further, longer climb over mountain terrain. Is there anything else worth seeing nearby? Yes — the neighbouring Estany de Ratera, with its striking waterfall, and Estany Gran d'Amitges. Together, the lakes above Sant Maurici form a natural multi-hour route linking several glacial basins. Is this route suitable for beginners? The stretch up to Sant Maurici is easy and manageable for most visitors. The climb on to the higher Estany de la Cabana is considerably more demanding and best suited to hikers used to mountain terrain.

Estanh des Gargolhes

Naut Aran

Estanh des Gargolhes is a glacial mountain lake in the municipality of Naut Aran, in the Catalan Pyrenees, within the Val d'Aran valley. It belongs to the Circ de Colomèrs, a large glacial cirque that holds dozens of lakes and ponds scattered above 2000 metres of altitude. Estanh des Gargolhes sits at the foot of Tuc de Lluçà (2778 m) and is one of the lakes reached further into the cirque along the main hiking route. How do you get there? Hikes into the cirque typically start near the Colomèrs dam and the Refugi de Colomèrs, from where a mountain trail runs into the Aiguamòg valley. The path is rocky and often damp close to the water, so proper trekking footwear is recommended. Along the way, walkers pass several of the cirque's other lakes, including Estanh Mort, before reaching the area around Estanh des Gargolhes and the nearby Estanhets deth Pòrt. Given the altitude and terrain, it is worth allowing plenty of time for the walk and checking current weather conditions before setting out. What will you see? Estanh des Gargolhes has the crystal-clear water typical of high Pyrenean lakes, framed by rocky granite slopes. Mountain pine and black pine (pi negre) grow around the shoreline, with rhododendron thickets lower down the slopes. The surrounding peaks rise to nearly 3000 metres, including Tuc de Lluçà, towering over the whole Colomèrs cirque. The cirque itself is one of the most recognisable landscapes in Val d'Aran precisely because of its density of lakes — within a few kilometres, dozens of ponds and lakes of different sizes can be found, from small tarns to larger estanhs. The terrain carries clear glacial signatures: rocky steps, moraines, and steep walls enclosing each lake basin. When is the best time to visit? Because of the altitude, the area can stay under snow for much of the year, so summer and early autumn are the best times for hiking, once trails are clear and snow has melted from the higher parts of the cirque. Summer days are longer, allowing a relaxed pace through the cirque without rushing. Spring and late autumn can bring tougher conditions, with leftover snow or icy patches on the higher sections, so it is worth checking local trail reports before heading out in those seasons. Frequently Asked Questions Where exactly is Estanh des Gargolhes located? The lake lies in the municipality of Naut Aran, in the Val d'Aran valley, in the province of Lleida, in the Catalan Pyrenees. It forms part of the lake complex within the Colomèrs cirque. Is the hike to the lake difficult? The route crosses high-mountain terrain with uneven ground and sections close to the water, so it requires reasonable fitness and proper footwear. It is not a walk for absolute beginners, but with good weather and preparation it is manageable for an averagely fit hiker. How many lakes are there in the Colomèrs cirque? The Colomèrs cirque is known for its exceptional concentration of water bodies — dozens of lakes and ponds sit within it, making it one of the most distinctive lake landscapes in the Pyrenees. Is there a mountain refuge nearby? Yes, the Refugi de Colomèrs, next to the dam, serves as the reference point for hikes into the cirque, with trails branching out from there into the valley.

Estanh Long de Colomèrs

Naut Aran

Estanh Long de Colomèrs is the largest glacial lake in the Colomèrs cirque, one of the best-known natural landmarks of Vall d'Aran in the Catalan Pyrenees, within the municipality of Naut Aran. Where is Estanh Long de Colomèrs? The lake sits at the heart of the Colomèrs cirque, a broad glacial basin ringed by peaks approaching 3,000 metres, including Tuc de Ratera, Gran Tuc de Colomèrs and Creu de Colomèrs. The cirque is one of the largest formations of its kind in the entire Pyrenean range and holds several dozen small lakes, locally called "estanhs," of which Estanh Long is the biggest. The whole basin was carved out over thousands of years by glacial erosion, leaving behind a chain of rocky hollows now filled with clear mountain water. How do you get there? Most visitors start from the Montanheta area, where a marked path climbs into the valley toward the cirque. In summer, part of the approach can sometimes be covered by private off-road vehicle or a local mountain taxi service, though availability depends on the season and road conditions, so it's worth checking locally before setting off. From there, the route continues on foot, steep at first and gentler further on, passing the first lakes before reaching the area around the Refugi de Colomèrs mountain hut, a natural landmark and rest stop for hikers. What will you see along the way? Estanh Long lies on the popular "seven lakes route," which links Estanh dera Lòssa, Estanh Major, Estanh de Colomèrs, Estanh Mòrt, Estanh des Garguilhs de Jos, Estanh de Cabidornats and Estanh Long itself. It's a moderately demanding loop through bare, high-mountain terrain, with steep ridgelines overhead and a string of lakes shifting through shades of turquoise and blue. The paths within the cirque are waymarked and loop-shaped, so the walk can be shortened or extended depending on fitness: some visitors turn back after the first couple of lakes, while others push on to the higher reaches of the cirque, including the glacial lake of Estanh Gelat further up. When is the best time to visit? Summer, roughly from June to September, is the best window, when trails are free of snow and lake levels are stable. Outside that period, snow can linger in the higher parts of the cirque, making some lakes harder to reach. Setting out early in the morning is a good idea — weather in the Pyrenees can shift quickly during the day, and the morning light brings out the colour of the water and the surrounding peaks particularly well. Frequently Asked Questions Is Estanh Long de Colomèrs the highlight of the cirque? It's the largest lake in the whole complex, so it's one of the main draws — but the route strings together several lakes, so it's worth planning the full loop rather than aiming for just one stop. Is the hike difficult? Trails through the Colomèrs cirque vary in difficulty, from easier stretches near the lower lakes to steeper climbs higher up. The route is waymarked and can be shortened or lengthened depending on your fitness level. Can you drive close to the lakes? Direct vehicle access into the valley is often limited, and in season local off-road taxis can bring hikers closer to the trailhead. It's best to confirm current access arrangements locally, since they depend on the time of year. Is there anywhere to stay nearby? Yes, the Refugi de Colomèrs mountain hut sits within the cirque and serves as both a landmark and a base for hikers who want to split the visit over more than one day.

Laguna San Pedro

Ossa de Montiel

Laguna San Pedro is one of the lakes in the Lagunas de Ruidera chain, a scenic string of interconnected lagoons near the village of Ossa de Montiel, in the province of Albacete, Castilla-La Mancha. It sits within the Lagunas de Ruidera Natural Park, a protected area known for its distinctive karst landscape and rich wildlife. Where exactly is Laguna San Pedro? The lake belongs to a system of around fifteen interlinked lagoons stretching along a river valley on the border between the provinces of Albacete and Ciudad Real. The chain formed over thousands of years thanks to natural travertine dams that built up in the riverbed, creating a cascading sequence of pools separated by small waterfalls and rocky ledges. Ossa de Montiel, the nearest sizeable town, serves as the main gateway to the park and the natural starting point for exploring the area. How do you get there? Lagunas de Ruidera Natural Park lies in the heart of Castilla-La Mancha, a region best known for the landscapes described in Cervantes' "Don Quixote." Ossa de Montiel is the obvious base for a visit — local roads and trails lead from the village into the park, running past the individual lagoons of the chain, Laguna San Pedro included. A car is the most practical option, since the park covers a fairly wide area and the lakes are spread several kilometers apart from one another. What will you see at Laguna San Pedro? The defining feature of the whole Lagunas de Ruidera system is the striking turquoise-green color of the water, caused by dissolved calcium carbonate and the specific aquatic vegetation that thrives in it. The shores are lined with reeds, rushes, and trees typical of a Mediterranean wetland, and the surrounding countryside supports numerous species of waterbirds, making the area a rewarding spot for birdwatching. The landscape mixes rocky outcrops and small cliffs overlooking the water with gentler, green valley sections. What can you do in the area? The park is a popular destination for hikers and cyclists, with trails connecting the different lagoons so visitors can explore the chain in stages rather than all at once. Swimming and water sports such as kayaking or paddleboarding are possible at several points along the lakes, though rules can vary from one lagoon to another and are worth checking locally before you go. The region also draws landscape photographers, thanks to the contrast between the blue-green water and the dry, stony hills typical of La Mancha. When is the best time to visit? Spring and early summer are the best times to come, when water levels are higher, vegetation is lush, and temperatures are comfortable for both hiking and swimming. Late summer tends to be hot and dry, as is typical for central Spain, so bringing water and sun protection is essential. Autumn and winter bring quieter trails and fewer crowds, though some water-based activities may not be available during the colder months. Frequently Asked Questions Can you swim in Laguna San Pedro? Several lagoons in the chain allow swimming in designated spots, but rules can vary by season and by lagoon, so it's worth confirming locally before your visit. How far is Laguna San Pedro from Ossa de Montiel? The lake lies within Lagunas de Ruidera Natural Park, for which Ossa de Montiel is the closest sizeable town and the main access point. Are there hiking trails nearby? Yes, the park has a network of walking and cycling trails linking the lagoons, allowing visitors to explore the chain step by step. What should you bring for a visit? Comfortable footwear, water, sun protection, and swimwear if you plan to take a dip in one of the lagoons — essentials for the region's dry, sunny climate.

Obago Lake

Naut Aran

Obago Lake is a glacial mountain lake in the municipality of Naut Aran, in the upper Val d'Aran valley, deep in the Catalan Pyrenees. It's one of many tarns left behind by glacial activity that shaped this part of the range, where rocky cirques, sharp ridgelines, and high alpine meadows dominate the scenery. Where is Obago Lake? The lake sits within Naut Aran, the largest and highest municipality in Val d'Aran, covering a stretch of mountain villages and terrain right up against the French border. Naut Aran is known for wide alpine landscapes, rocky peaks, and a scattering of glacial lakes at different altitudes — Obago Lake is one of them, fitting the pattern typical of this stretch of the Pyrenees. How do you get there? Like most lakes of this kind in Val d'Aran, Obago Lake is reached on foot. Trailheads typically start from villages within the Naut Aran municipality, with paths leading up into the range. Given the high-altitude setting and the Pyrenees' changeable weather, it's worth checking current trail conditions and getting a map from a local tourist office or park information point before heading out — the exact markings and length of the approach depend on the route chosen. What will you see there? A glacial lake of this type is usually a small, still body of clear, cold water, framed by rock walls and scree typical of high mountain cirques. In the Pyrenees, lakes like this often shift between shades of turquoise and grey depending on the time of day and the angle of light, with sparse alpine grasses and dwarf pine clinging to the shores. Obago Lake fits that same mold — a quiet, stripped-back alpine setting with views over the surrounding ridges and valleys of Naut Aran. For hikers looking for a break from busier trails, or for anyone chasing mountain photography, it makes a natural stop on a longer trek through this part of the Pyrenees. When should you visit? Summer — from June to September — is the best window for visiting high-altitude lakes in Val d'Aran, once most of the snow has cleared and trails become passable. Early summer can still bring patches of snow around the lake, which adds to the scenery but calls for proper footwear and caution. In autumn and winter, the higher parts of the Pyrenees can be hard to reach due to snow and ice, so a visit in those months requires more mountain experience and preparation. Frequently Asked Questions Is it hard to reach Obago Lake? The lake lies in the high-altitude part of Naut Aran, so getting there takes decent fitness and preparation for mountain terrain. Plan your route and check trail conditions before setting out. What's the best time of year to visit? Summer, roughly June through September, when trails are clear of snow and most accessible. Can you swim in the lake? High-altitude glacial lakes in the Pyrenees tend to stay very cold year-round, so swimming isn't typically what draws visitors here. Are there other things worth seeing nearby? Naut Aran is one of the most mountainous parts of Val d'Aran, with plenty of trails and other glacial lakes in the area, so it's worth pairing a visit to Obago Lake with a longer route through the surrounding peaks and valleys.

Estanh Mòrt

Naut Aran

Estanh Mòrt is a small glacial lake tucked into the high mountains of Naut Aran, the municipality that occupies the far end of Val d'Aran in the Catalan Pyrenees. Its waters rest in a rock basin carved out by ancient ice, surrounded by the bare granite ridges, dwarf pine and alpine meadows typical of this altitude, which only turn green once the snow has melted. Where exactly is Estanh Mòrt? The lake sits within the Circ de Colomèrs, one of the best-known glacial cirques in Naut Aran. This is an area with an unusually high concentration of lakes — the municipality of Naut Aran alone counts more than 200 bodies of water of glacial origin, and the Colomèrs and Rius-Restanca areas are considered the most striking among them. Estanh Mòrt lies along the trail linking several of these lakes, between the old Colomèrs refuge and the higher-lying Estanh des Garguilhs de Jos. How do you get there? The starting point is the Banhs de Tredòs car park, reached by a paved forest road from the village of Salardú. From there, the old Colomèrs refuge — the real starting point of the circular lake trail — can be reached on foot or by a seasonal 4x4 shuttle service. Leaving the refuge, the path climbs through a narrow stretch and arrives at the shore of Estanh Mòrt, which the trail skirts on its left side. What will you see along the way? Past the lake, the trail climbs a small gully marked with yellow waymarks, continuing on to Estanh des Garguilhs de Jos, another link in the Circ de Colomèrs chain of lakes. The whole area belongs to the classic hiking route through seven lakes, a route popular with visitors to Naut Aran precisely because of how many glacial lakes are packed into one stretch of mountain. The scenery shifts gradually, from the rocky ledges right by the lake to more open, higher-lying terraces holding further sheets of water. When should you go, and how should you prepare? The route is rated as a moderate mountain hike — it involves no technical climbing, but does include real elevation gain, so sturdy trekking boots are essential. Even in summer, it's worth packing a warm layer, since weather at this altitude can shift quickly and wind around the lakes can be biting regardless of season. Summer and early autumn are the best times to hike here, when the trail is free of snow and the 4x4 shuttle to the Colomèrs refuge runs regularly. Frequently Asked Questions Is it hard to reach Estanh Mòrt? Driving only gets you as far as the Banhs de Tredòs car park. From there you continue on foot, or take the seasonal 4x4 shuttle up to the Colomèrs refuge, after which only a short, narrow stretch of walking trail separates you from the lake. Is the trail suitable for beginners? It's rated a moderate hike — no climbing or exposed sections, but with noticeable elevation gain. Anyone with average fitness should manage it comfortably, provided they have proper footwear. Are there other lakes to see nearby? Yes. Estanh Mòrt is one stop along the trail connecting several lakes in the Circ de Colomèrs, including the higher Estanh des Garguilhs de Jos. It forms part of the wider multi-lake hiking route through this part of Naut Aran. What's the best season to hike here? Summer and early autumn, when the trail is clear of snow and the shuttle service to the refuge is running normally. Even then, pack a warm jacket — weather in the high Pyrenees can change fast.

Laguna de Tirez

Villacañas

Laguna de Tirez is a salt endorheic lake south of Villacañas, in the province of Toledo, Castilla-La Mancha. It belongs to the Guadiana river basin, specifically the Riánsares sub-basin, though the lagoon itself has no direct link to any watercourse — it fills solely from rainfall and shallow sub-surface runoff. It covers roughly 62 hectares and sits in a flat, shallow basin typical of the steppe lagoons scattered across the La Mancha plain. What will you see? The lagoon's biggest draw is how dramatically it changes through the year. In summer, water evaporates quickly and white salt crusts form across the surface and shoreline, turning the basin into a cracked, sun-baked salt flat. After rain, the cycle reverses: dissolved salts return to the water and the lagoon regains its liquid character. It's during these transitional phases, when high salinity and sunlight favor halophile microorganisms, that the water can take on the pink tint typical of similar salt lagoons in Castilla-La Mancha. Laguna de Tirez is part of the Natura 2000 network and is protected both as a Natural Reserve and as part of a Biosphere Reserve. The site stands out for a variety of hypersaline-habitat flora rarely found elsewhere in Europe, including some species considered endangered. The landscape is open and steppe-like — low halophile scrub, bare saline flats, and the flat horizon typical of the interior Castilian plateau. How do you get there? Laguna de Tirez lies within the municipality of Villacañas, south of the town center. Villacañas is in the province of Toledo, Castilla-La Mancha, and is well connected to both Toledo and Madrid. The lagoon is best reached by car, following local roads out of Villacañas toward the region's protected wetlands (humedales). The area also forms part of the Caminos Naturales walking and cycling route, which links the La Mancha wetlands between Villacañas and Quero. When should you visit? The best time depends on what you want to see. Spring and early summer, right after the rainy season, is when the lagoon holds the most water and offers the best chance of spotting its characteristic coloring along with waterfowl drawn to the wet habitat. Late summer and autumn instead reveal a dry, salt-crusted landscape with white efflorescence covering the basin floor — a different but equally distinctive view of the lagoon. As a protected natural area, visitors should stick to marked paths and respect conservation rules. Frequently Asked Questions Why does the water in Laguna de Tirez sometimes turn pink? The pink tint appears seasonally and is linked to the lagoon's high salinity, which favors the growth of halophile microorganisms common in the shallow salt lagoons of Castilla-La Mancha. Does Laguna de Tirez dry up completely? Yes. During the summer months the water evaporates heavily and salt crusts form on the surface, turning the lagoon into a salt flat until rainfall refills it and restarts the cycle. What protection status does the site have? Laguna de Tirez is part of the Natura 2000 network, functions as a Natural Reserve, and belongs to a Biosphere Reserve, owing to its unique hypersaline-habitat flora. Are there other wetlands nearby worth visiting? Yes, Villacañas and its surroundings form part of a larger complex of La Mancha wetlands (humedales), linked by the Caminos Naturales route heading toward Quero.

Ibón de Cregüeña

Benasque

Ibón de Cregüeña is a glacial mountain lake near Benasque, in the Aragonese Pyrenees. Sitting at roughly 2,630 m above sea level on the southern slope of the Maladeta massif, within the Posets-Maladeta Natural Park, it is described in available sources as the largest glacial lake in Spain — around 1,500 m long, up to 500 m wide, covering about 43 hectares, with a depth reaching 97 m. How do you get there? The most common approach starts at the Refugio de la Renclusa, from where a trail follows the Cregüeña valley all the way up to the lake. An alternative route begins at the Paso Nuevo reservoir, joining the path toward the Vallibierna valley before climbing through the Cregüeña ravine to reach the same destination. Either way, this is a demanding hike: the round trip typically takes 5.5 to 6.5 hours, with substantial elevation gain along rocky, high-mountain terrain. It ranks among the tougher day hikes in the Benasque valley, so an early start, proper trekking boots, and a check of the mountain weather forecast are all worth planning for — conditions in this part of the Pyrenees can shift quickly. What will you see? What stands out first is the sheer size of the lake — this isn't a small tarn but a wide sheet of water framed by bare rocky slopes and peaks rising above 3,000 m. The Maladeta massif looms over the basin, one of the most recognizable ranges in this stretch of the Pyrenees. The surrounding area is one of the few places left in southern Europe where active glaciers still persist, with the Maladeta-Aneto glacial complex ranking among the most extensive in the entire range. The result is a landscape that mixes high-mountain starkness with the blue-green tone of the water, set against grey rock and patches of snow that linger on the slopes for much of the year. When should you visit? Given the altitude and terrain, the route is really only fully accessible in summer, from July to September, once most of the snow has melted and the path is passable without winter gear. Outside that window, snow patches can remain on the slopes, sharply raising both the difficulty and the risk of the hike. Aim for a clear-weather day — under cloud cover, the panorama of peaks ringing the lake loses much of its impact, and navigating the terrain becomes noticeably harder. Frequently Asked Questions Is the hike to Ibón de Cregüeña difficult? Yes — it's considered one of the more demanding routes in the Benasque valley, due to the distance, the substantial elevation gain, and the rocky high-mountain terrain on the final stretch of the approach. How long does the hike take? Depending on fitness level and the route chosen, the round trip usually takes between 5.5 and 6.5 hours. Is it really the largest glacial lake in Spain? Available sources indicate yes — Ibón de Cregüeña is cited as the country's largest glacial lake (ibón) by surface area. What's the best starting point? Two options are most common: starting from the Refugio de la Renclusa and following the Cregüeña valley, or starting from the Paso Nuevo reservoir via the Vallibierna valley.

La Grajera Reservoir

Logroño

La Grajera Reservoir sits just south of Logroño, the capital of La Rioja in northern Spain, roughly five kilometers from the city center. The reservoir runs alongside the Camino de Santiago, making it a familiar landmark for pilgrims walking west out of the city. How do you get there? La Grajera lies on the southern edge of Logroño, close enough to reach by bike or car within a short ride from downtown. Pilgrims walking the Camino de Santiago pass it naturally, since the route out of Logroño runs right alongside the reservoir — no detour needed. That combination of proximity and location on a major walking route means the reservoir draws both locals looking for a green space nearby and travelers pausing briefly during a longer journey. What will you see? The reservoir itself is the centerpiece: a wide stretch of water bordered by green space that has long served as a recreational area for the city. The surrounding grounds are set up for outdoor time — residents of Logroño come here to walk, cycle, or simply sit by the water away from the busier parts of town. La Grajera is also known among birdwatchers. The mix of open water, shoreline vegetation, and adjoining open land creates conditions that attract waterfowl and other species tied to wetland habitats, drawing in both casual visitors and more dedicated birdwatchers. Seen from the shore or from one of the paths that trace the water's edge, the reservoir offers the kind of calm, open view typical of this sort of site in La Rioja. When should you visit? Given the setting — an open body of water surrounded by green space — the warmer months make for the most pleasant visit, when longer days suit walking and lingering outdoors. For pilgrims on the Camino de Santiago, timing depends on the overall itinerary rather than the reservoir itself; La Grajera is simply one of the points passed after leaving Logroño, whatever the season. It's worth keeping in mind that this is primarily an open, natural area rather than a ticketed attraction with set visiting hours — visitors move freely along the paths that circle the water. Frequently Asked Questions Is La Grajera on the Camino de Santiago route? Yes, the reservoir sits directly alongside the Camino de Santiago on the stretch leaving Logroño toward the western part of La Rioja, so pilgrims pass it naturally on their walk. How far is La Grajera from central Logroño? It's about five kilometers south of the city center, making it easy to reach on foot, by bike, or by car. Is it a good spot for birdwatching? Yes, the wetland-like surroundings of the reservoir attract waterfowl and other bird species, making La Grajera a popular spot for nature observation in the La Rioja region. Is La Grajera a major tourist attraction or more of a local spot? It functions mainly as a recreational area for Logroño residents, but its location on the Camino de Santiago and its value for birdwatching also bring in visitors from outside the region.

Ibón de los Baños

Panticosa

Ibón de los Baños is a glacial mountain lake sitting right next to the Balneario de Panticosa spa, in the Tena Valley, in the Aragonese Pyrenees (Huesca province, Spain). Its cold, deep-blue water is framed by pine forest and rocky slopes, making it one of the most photogenic spots in the whole valley. Where exactly is it? The lake lies within the municipality of Panticosa, in the Alto Gállego region, at an altitude of over 1,600 metres. It's ringed by peaks above 3,000 metres — Garmo Negro, Argualas and Pondiellos — which gives the setting a genuinely high-mountain feel despite being relatively easy to reach. The historic Balneario de Panticosa spa complex sits right beside it, and gives the lake its name. How do you get there? The starting point is the Balneario de Panticosa itself, reached by road from the village of Panticosa along the Caldarés river valley. From the spa, a marked footpath leads up to the lake — there's no direct vehicle access to the shore. It's one of several trails departing from the spa area, rated moderate to hard depending on the exact route and time of year. The same area also serves as a starting point for longer hikes, including a stretch of the famous GR-11 (Senda Pirenaica) long-distance trail heading further toward the Ibones Azules. What will you see there? The path along the shore of Ibón de los Baños continues uphill to a spot known as Los Baños Viejos, home to the historic Fuente de Tiberio — a sulphurous, warm spring that flows even in winter. It's a remnant of the area's older spa tradition, from a time when these thermal waters drew visitors long before the modern balneario was built. More ambitious hikers can push on toward the Ibones Azules, two higher lakes (Superior and Inferior) reached via a route that climbs through a gorge carved by the Río Caldarés, with views opening up onto the surrounding 3,000-metre peaks. It's considered one of the classic day hikes of the Tena Valley. One thing to keep in mind: swimming in Ibón de los Baños, as in the other ibones of the region, is prohibited. The rule exists to protect these fragile high-mountain ecosystems, which are highly sensitive to human presence. When should you go? Late spring through early autumn is the best window, once the trails are clear of snow and the weather in this part of the Pyrenees is at its most stable. Summer brings the most visitors, drawn both to the ibón itself and to longer routes toward the Ibones Azules or the Bachimaña refuge. In winter, access to the higher stretches of trail can be difficult due to snow, though the Fuente de Tiberio spring keeps flowing year-round. Frequently Asked Questions Can you swim in Ibón de los Baños? No. Swimming is banned to protect the environment — the high-mountain lake ecosystems in this area are extremely sensitive to human disturbance. Can you drive right up to the lake? No. You need to reach the Balneario de Panticosa by road first, then continue on foot along a marked trail. Is the hike difficult? The walk to the ibón itself is generally moderate, but longer extensions, such as the route toward the Ibones Azules through the Caldarés river gorge, are more demanding and can take up most of a day. What else is worth seeing nearby? Beyond the lake, it's worth continuing to Los Baños Viejos to see the sulphurous Fuente de Tiberio spring, and, for fitter hikers, pushing on toward the Ibones Azules or a stretch of the GR-11 trail.

Ibón de Piedrafita

Búbal

Ibón de Piedrafita is a mountain lake in the Tena Valley, just above the village of Piedrafita de Jaca and close to Búbal, in the heart of the Aragonese Pyrenees (Huesca province). Sitting at roughly 1,611 metres above sea level, it's one of the most visited ibones in the region, mainly thanks to its easy access and the views from its shore. What exactly is an ibón, and how did this one form? In the Pyrenees, an "ibón" is the local name for a glacial mountain lake. Piedrafita occupies a basin created by a terminal moraine, and its surface was later enlarged with a small dam — at full capacity the lake can cover around 4.2 hectares. That makes it noticeably larger and more reliably full of water than many high-altitude ibones, which often shrink or dry out over summer. What will you see there? The main draw is the view. From the water's edge you get a clear line of sight to Peña Telera (2,764 m), the most recognisable peak in this part of the valley, along with Peña Parda (2,657 m) and Corona del Mallo (2,535 m). On calm days the surface mirrors these summits almost perfectly, which is why the spot is popular with photographers and anyone looking for a quiet break in the mountains. Nearby, it's worth seeking out the Arco de Piedrafita, a natural rock arch that frames one of the most striking views in the area — the valleys of Huesca, the Búbal reservoir, and the surrounding peaks all at once. How do you get to Ibón de Piedrafita? From Sabiñánigo, take the N-260 towards Biescas, then continue on the A-136 towards Piedrafita. Once you reach the Búbal reservoir (Embalse de Búbal), follow the signs towards the Parque Faunístico de Lacuniacha — the trails up to the lake start in this area. What's the hike like? The simplest option is a short approach from Piedrafita itself: about an hour of walking with roughly 250 metres of elevation gain. It suits families with children, first-time hikers, or anyone who just wants a low-effort walk to a scenic mountain lake. For a longer outing, there's also a circular route starting from Búbal that follows the Barranco de Boj stream. Depending on the exact variant, it runs about 5.7 to 8.4 km and takes anywhere from under two hours to nearly three, with 230 to 360 metres of elevation gain. Part of the path runs right alongside the stream, past water running between rocks, which is a highlight in its own right. When is the best time to visit? Ibón de Piedrafita is a viable destination almost year-round. In summer and autumn it makes for a relaxed family walk, while in winter — thanks to the modest elevation gain and proximity to the road — it's also a popular target for snowshoe outings when conditions allow. Frequently Asked Questions Is the hike to Ibón de Piedrafita difficult? No — it's one of the most accessible routes in the Tena Valley. The shorter approach takes about an hour with a modest climb, making it suitable for families and hikers with little mountain experience. How large is Ibón de Piedrafita? Thanks to the small dam that raised its water level, the lake covers around 4.2 hectares when full. Is there anything else worth seeing nearby? Yes — close by you'll find the Arco de Piedrafita, a natural rock arch with panoramic views over the Búbal reservoir and surrounding valleys, as well as the Parque Faunístico de Lacuniacha wildlife park. Can you reach the lake starting from Búbal? Yes, there's a circular route from Búbal via the Barranco de Boj ravine — longer and more varied than the short climb from Piedrafita.

Pozo Tremeo

Polanco

Pozo Tremeo is a small lake in Rumoroso, a village within the municipality of Polanco, on the coast of Cantabria, northern Spain. It is often described as the only permanent natural lake found along the Cantabrian coastal strip, tucked among meadows and woodland just inland from the sea. The site sits inside the boundaries of the Costa Quebrada UNESCO Global Geopark and has been protected since 2016 as an Área Natural de Especial Interés (ANEI) — at the time only the second such protected area to be designated in Cantabria, after La Viesca. What is the story behind its name? "Tremeo" comes from a Latin root meaning "to tremble." The lake formed when a section of limestone bedrock collapsed underground, a classic karst process, trapping water in the resulting hollow. Because the ground around the shoreline remains geologically unstable, visitors walking close to the water can sometimes feel it shift slightly underfoot — the origin of its nickname as "the lake that trembles." Local folklore has grown around that phenomenon for generations: tales of lovers who were never parted, wishes said to come true after touching the water, and rumors of underground tunnels connecting the lake to the sea. What will you see there? The lake itself is modest in surface area but unusually deep for its size, reaching down several meters more than one would expect from such a compact karst pool. It is ringed by a mix of deciduous woodland and damp meadowland typical of inland Cantabria. The area is a refuge for species tied to both water and forest habitats, including bats, beetles of conservation interest, and the native freshwater crayfish — a species particularly sensitive to water quality, whose presence is generally taken as a sign of a healthy ecosystem. A footpath circles the lake, allowing visitors to walk its perimeter and take in the view from several angles and shoreline heights. In recent years, regional authorities have carried out conservation work at the site, including measures aimed at preventing flooding and safeguarding the protected ANEI area — evidence that the lake is actively managed rather than simply protected on paper. How do you get there? Pozo Tremeo lies in Rumoroso, part of the municipality of Polanco, on the central stretch of the Cantabrian coast. Polanco sits along the main routes connecting Santander to the western part of the region, making the surrounding area a convenient base whether you are coming from the coast or from further inland. Given how understated the site is, it is worth checking local trail signage on arrival — this is a destination for a short, quiet walk rather than one built around heavy tourist infrastructure. When is the best time to visit? Since Pozo Tremeo is essentially a nature spot — woodland, meadow, and the lake itself — it rewards a visit outside the height of summer, when the light and vegetation are best suited to an unhurried walk and the area is quieter than the well-known beaches of the nearby Costa Quebrada. It suits travelers looking for stillness and a lesser-known, inland side of the Cantabrian coast rather than a typical beach outing. Frequently Asked Questions Is Pozo Tremeo really the only lake of its kind in Cantabria? It is generally described as the only permanent natural lake along the Cantabrian coastal strip, which makes it a distinctive geological feature in the region. Why is it called the "trembling lake"? Because of its karst origins and the instability of the ground around its edges — the earth near the water can genuinely shift slightly, a phenomenon that has fed local legends for centuries. Can you swim in Pozo Tremeo? Available sources do not list swimming as a typical activity here; the site is mainly visited for walking and nature observation, and its ANEI protected status comes with restrictions designed to safeguard the ecosystem. Is there a marked walking trail around the lake? Yes, a footpath runs around the lake allowing visitors to circle it and view it from different points, though it is a local walking route rather than an extensive signposted trail network.

Laguna de Carravalseca

Laguardia

Laguna de Carravalseca is a small, seasonal lake right next to Laguardia, one of the best-known towns of Rioja Alavesa in the Basque Country. It forms part of the Complejo Lagunar de Laguardia, a wetland complex listed under the Ramsar Convention as a wetland of international importance. Where is it and how do you get there? The lagoon sits about one kilometre from Laguardia's historic centre, surrounded by gentle hills and the vineyards that define the whole Rioja Alavesa landscape. The easiest way in is to take the road out of Laguardia toward Logroño, then follow the rural tracks that cut through the vineyards — the same route links up with a walking path connecting all the lagoons in the complex. It's an easy add-on for a short, relaxed walk rather than a full day trip. What will you actually see? Carravalseca is an endorheic lagoon with highly saline water, meaning it has no permanent outflow and its level depends heavily on the season and on rainfall. Autumn rains start refilling it, the water reaches its greatest depth in spring, and during the dry summer months the lagoon can dry out completely, exposing its salt-crusted bed. That variability means the landscape looks different every time you visit — sometimes a still sheet of water mirroring the vineyards and hills, sometimes a dry, cracked plain. Viewing points have been set up around the lagoons in the complex so visitors can watch birdlife without entering protected areas or disturbing the habitat. That's one reason the spot draws people interested in nature and birdwatching, even casual visitors without specialist gear. When should you go? Spring is the best time to see the lagoon at its fullest and most photogenic, while autumn — right after the first rains — is when it starts filling up again. In summer, at the peak of the dry season, the lagoon may be completely dried out; that's still an interesting sight, just a very different one, so keep it in mind if seeing open water is the main goal. Who is this for? Carravalseca and the other lagoons in the complex suit travellers looking for a quiet, low-key nature stop among the vineyards rather than a heavily built-up attraction. It pairs naturally with a visit to Laguardia itself — a walled historic town with plenty of wineries to explore — for anyone wanting to combine sightseeing with a short walk in nature. Frequently Asked Questions Does the lagoon always have water? No. Carravalseca is a seasonal lake — it fills with autumn rain, reaches its deepest point in spring, and can dry out completely in summer. How far is it from central Laguardia? About one kilometre, reached by road and rural tracks through the vineyards toward Logroño. Can you go birdwatching there? Yes, designated viewing points around the lagoons let visitors observe birds without disturbing their habitat. Is Carravalseca a protected area? Yes, it's part of the Complejo Lagunar de Laguardia, listed under the Ramsar Convention as an internationally important wetland.

Nature in Spain

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Laguna de la Vega

Laguna del Comisario

Lago El Puerto

estany d'Areste

Castiñeiras Lake

Estanys de Comalesbienes

estany Xic

estany de Dellui

estanh deth Pòrt de Colomèrs

Estany de Contraix

Estany de la Cabana

Estanh des Gargolhes

Estanh Long de Colomèrs

Laguna San Pedro

Obago Lake

Estanh Mòrt

Laguna de Tirez

Ibón de Cregüeña

La Grajera Reservoir

Ibón de los Baños

Ibón de Piedrafita

Pozo Tremeo

Laguna de Carravalseca

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