Nature in France
A guide to 575 Nature in France — with descriptions, photos and traveler visits from the NextOnTrip community. Locations spread across 444 cities and towns. Most visited by the community: Belvédère du Couloir Samson, place Bellevue, Cuves du Buizin.
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Lac d'Arlet
Borce
Lac d'Arlet is a glacial mountain lake in the commune of Borce, in the Pyrénées-Atlantiques department of France, sitting at nearly 2,000 metres above sea level in the upper Aspe valley, inside the Pyrenees National Park, close to the Spanish border. Where exactly is the lake? The lake lies at the foot of the Pic d'Arlet, in the high section of the Aspe valley. It's a modest body of water, covering roughly 2.7 hectares and reaching a maximum depth of about 7 metres — dimensions typical of a small lake carved out by glacial action rather than by a river. How do you get there? Reaching Lac d'Arlet means walking, on a route covering roughly 18 kilometres round trip. The starting point is Maison Lamourane, where the paved road out of Borce comes to an end. From there, the trail crosses the pastures of the Vallon de l'Aubise before climbing to the lakeshore. With close to 1,000 metres of elevation gain and a walking time counted in hours rather than minutes, this is a demanding outing best suited to hikers with some mountain experience. Because the lake sits within the core zone of the Pyrenees National Park, painted trail markers are not allowed there, so part of the route relies on directional signposts instead of the usual paint blazes. Along the way, the landscape shifts repeatedly: forest, then open grazing land, then stretches beneath steep rock faces. Is there somewhere to stay overnight? Yes. The Refuge d'Arlet stands right on the lake's edge and is the only staffed mountain hut in the entire Aspe valley. It's guarded and run through the summer season by Pyrenees National Park staff, which makes it possible to plan longer, multi-day itineraries in this stretch of the range near the French-Spanish border. Who is this hike for? Given the distance, the elevation gain, and the partly unmarked trail, the walk to Lac d'Arlet suits hikers who are reasonably fit and looking for a quieter, wilder corner of the western Pyrenees. The payoff is a lake sitting almost two thousand metres up, framed by the high-mountain scenery typical of this part of the range. FAQ Where is Lac d'Arlet located? In the commune of Borce, Pyrénées-Atlantiques department, in the Aspe valley of the French Pyrenees, near the border with Spain. How high up is the lake? At an altitude of close to 2,000 metres above sea level. How long is the trail to Lac d'Arlet? The round trip covers about 18 kilometres, starting from Maison Lamourane at the edge of Borce. Is there a refuge at the lake? Yes — the Refuge d'Arlet, the only staffed hut in the Aspe valley, open and guarded during summer. Is the trail waymarked? Only partly. Painted markers are banned in the park's core zone, so signposts guide hikers instead of the usual paint blazes.
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Lac des Hôpitaux
La Burbanche
Lac des Hôpitaux is a modest body of water in the commune of La Burbanche, in the Ain department of France, within the Auvergne-Rhône-Alpes region. The plural French name, Lacs des Hôpitaux, hints at its real shape: two adjoining basins that together cover roughly 17 hectares. It is the kind of place travelers usually hear about from locals rather than from tourism brochures, and that low-key character is a big part of its appeal. Where is the lake located? The lake sits in the heart of Bugey, the hilly, historically distinct area in the eastern part of Ain, between the villages of Tenay and La Burbanche, about ten kilometers from Saint-Rambert-en-Bugey. The surrounding landscape is forested and rolling, typical of the foothills leading toward the Jura, and the lake occupies a basin tucked into the woods — close enough to nearby towns, yet quiet enough to feel remote. Fishing at Lac des Hôpitaux Fishing is the main reason people come here. The waters are managed by Aappma Albarine, a volunteer-run angling association responsible for stocking and maintaining the site. Depths reach into double digits in places, which suits predatory species — pike is considered the star catch. Alongside pike, anglers can find zander and perch, as well as carp and so-called white fish such as roach, tench, and bream. That mix of species draws both spin-fishing enthusiasts chasing predators and anglers who prefer a slower, more contemplative style of fishing. The ecological value of the eastern shore The eastern part of the lake has a different character from the rest of the water body: it is a wetland area tied to the marsh that forms the source of the Furan river. Because of the fauna and flora found there, this section has been recognized as ecologically significant. It functions as habitat for wetland-associated plants and species, quite distinct from the open, recreation-oriented water elsewhere on the lake. For anyone interested in nature, it is worth walking that stretch of shoreline just to see where still water gives way to marsh. Beyond the water: what else to do nearby Bugey is known for its dense network of walking trails winding through forest and hillside, so the lake works well as a base for longer hikes rather than a single-stop destination. The wooded surroundings also make it a pleasant spot for a simple picnic or a short lakeside walk, away from the busier tourist hubs elsewhere in Ain. Frequently asked questions Can you fish at Lac des Hôpitaux? Yes — fishing is the lake's primary use. The site is managed by the local angling association Aappma Albarine, and pike is the most sought-after species. How big is the lake? The whole site covers about 17 hectares, made up of two connected basins — which is why the French name uses the plural "Lacs." Are there walking trails around the lake? Yes. The Bugey region has an extensive network of hiking trails through forest and hills, and the lake itself is surrounded by woodland well suited to a quiet walk. Does the lake have any ecological significance? Its eastern section, linked to the marsh that forms the source of the Furan river, has been recognized for its notable fauna and flora. How do you get to Lac des Hôpitaux? The lake lies in the commune of La Burbanche, between Tenay and La Burbanche, roughly ten kilometers from Saint-Rambert-en-Bugey in the eastern part of the Ain department.
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Étang du Rodoir
Nivillac
Étang du Rodoir is a 12-hectare pond in the commune of Nivillac, in the Morbihan department of southern Brittany, close to the Vilaine estuary and the town of La Roche-Bernard. It's a low-key spot that combines fishing, gentle walking and birdwatching away from the coastal crowds. Where exactly is Étang du Rodoir? The pond sits alongside the D765 road linking La Roche-Bernard to Missillac, right at the roundabout that carries the Rodoir name. Administratively it belongs to Nivillac, on the edge of the border with La Roche-Bernard. It's an easy stop by car, with a parking area beside the water that also serves as a launch point for light boats. How big is it, and who looks after it? The pond covers roughly 12 hectares. It's owned by the Syndicat "Eau du Morbihan", the departmental water authority — the site once served as a drinking-water reserve for Nivillac. Day-to-day fishing rights are managed by the local angling association AAPPMA "Le Brochet de Basse Vilaine". A separate local group is dedicated to safeguarding the pond and the adjoining Rodoir stream, working to protect their ecological and heritage value while keeping public access free. What can you catch there? The pond is classified as a second-category fishery. It holds predatory species — pike and perch — alongside carp and other coarse fish. Night fishing for carp is permitted, which draws carp anglers looking for longer sessions. Boats are allowed on the water, but only with electric motors or as float tubes; petrol engines are banned, which keeps the pond notably quiet for both anglers and wildlife. Is there anything to do besides fishing? Étang du Rodoir also works well for an unhurried walk. When the water level is lowered, it becomes possible to circle the pond on foot along its edge. The surrounding area supports a varied bird population, and otters — a species protected under both French and EU law — are present in and around the water. That combination makes the pond worth a stop for nature-watchers as well as anglers. Frequently asked questions Can you fish at Étang du Rodoir at night? Yes, night fishing for carp is authorised at the pond. Are boats allowed on the pond? Boats with electric motors and float tubes are permitted; petrol-powered engines are not. Is there parking at the pond? Yes, there's a parking area next to the water, which also allows light boats to be launched. How do you get to Étang du Rodoir? The easiest route is from La Roche-Bernard along the D765 towards Missillac, as far as the Rodoir roundabout. Can you walk all the way around the pond? Yes, particularly when the water level has been lowered, a circuit on foot around the pond is possible. What fish species live in the pond? Pike, perch, carp and other coarse fish — the water is rated a second-category fishery.
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Lac des Perches
Rimbach-près-Masevaux
Lac des Perches is a small glacial lake sitting at 984 metres above sea level in the commune of Rimbach-près-Masevaux, in the Haut-Rhin department, on the Alsatian side of the Vosges mountains. Locally it is also known as the Sternsee, a German name reflecting the bilingual heritage of this border region. Covering only 0.044 km², the lake rests at the bottom of a steep glacial cirque, ringed by rocky slopes — a wild, secluded setting quite different from the more accessible lakes elsewhere in the Vosges. Where exactly is the lake? Lac des Perches lies in the upper part of the Rimbach-près-Masevaux commune, high above the Doller valley. Its coordinates, 47.8464, 6.9228, place it among forests and mountain pastures typical of the Alsatian Vosges — closer to the ridgeline than to any valley floor, well away from settled areas. How do you get there? No road reaches the lake — the only way in is on foot, starting from the upper end of the village of Rimbach-près-Masevaux. The trail climbs through the Riesenwald forest, marked with a blue triangle, before reaching the Col des Perches. From the pass, hikers can pick up a GR trail, marked with a red rectangle, that circles the lake itself. Along the way, the route also passes two smaller bodies of water, the Petit and Grand Neuweiher, making it possible to combine the walk into a loop covering all three lakes of the Masevaux area. The outing is measured in hours rather than minutes: it is a steep, demanding climb suited to hikers in good shape who are used to mountain trails. What will you see at the lake and around it? The lake itself has a raw, intimate character — a small sheet of water enclosed by the steep walls of its cirque, far from the busier tourist spots of the region. It is worth continuing up to the Tête des Perches summit, which opens onto a view of the lake, the Masevaux valley, the Rossberg massif and the Grand Ballon, the highest peak in the Vosges. On a clear day, the outline of the Alps can even be made out on the horizon. That contrast — a tiny, hidden lake set beneath a sweeping panorama — is the main reason to make the climb. When is the best time to visit? Given the altitude, close to 1,000 metres, and the nature of the trail, the best window for hiking runs from late spring through summer into early autumn, when paths are dry and free of snow. In winter and early spring, the route can turn difficult or hazardous, with ice and lingering snow on the steeper sections. Frequently Asked Questions Can you drive to Lac des Perches? No. The lake sits in mountain terrain with no road access — the only way to reach it is on foot, via the trail from Rimbach-près-Masevaux. How long does the hike to the lake take? It is an outing of several hours, depending on the route chosen and whether it is combined with the loop past the Neuweiher lakes. Can you swim in the lake? Given its small surface area, altitude and cirque setting, the lake mainly serves as a scenic highlight on the trail rather than a swimming spot. What is the German name for the lake? Sternsee — used interchangeably with the French Lac des Perches, reflecting Alsace's bilingual regional tradition.
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Lac des Garrets
Entraunes
Lac des Garrets is a high-altitude lake in the commune of Entraunes, in the Alpes-Maritimes department, within the boundaries of Mercantour National Park. It sits at 2,621 metres above sea level, in a small rocky cirque right on the edge of the neighbouring Alpes-de-Haute-Provence department — and it's from that side, near Allos, that most visitors approach it. Where exactly is Lac des Garrets? The lake lies northeast of the far better-known Lac d'Allos, surrounded by the high peaks of the Mercantour massif. To its south sits Lac de la Petite Cayolle (2,588 m), and the Pas du Lausson pass nearby links the two lakes on a well-known loop route. From several points along the trail, hikers get clear views of Mont Pelat (3,051 m) and Montagne de l'Avalanche (2,729 m). What makes this lake distinctive? Because of its elevation, Lac des Garrets spends most of the year frozen — roughly eight months of ice cover. In summer, strong evaporation shrinks the water surface considerably, so by autumn the lake takes on a visibly reduced, irregular shape. Despite these harsh conditions, phytoplankton that captures solar energy still develops in the water, allowing a limited form of life to exist at this altitude, though it never goes beyond the planktonic stage. How do you get there? The most common approach starts from the Allos side: the D226 road leads to the Cluite parking area (1,800 m), from where a narrow road — sometimes subject to a toll — climbs further to the parking spot near the Maison Forestière du Laus (2,110 m). From there, only a walking trail leads up to the lake itself. The loop combining Lac des Garrets, Lac de la Petite Cayolle and the Pas du Lausson pass typically takes around 4 to 4.5 hours, with an elevation gain of roughly 500 to 800 metres depending on the exact route chosen. May to October is the best window, once the passes and approach trails are clear of snow. What else can you see along the way? The hike to Lac des Garrets is largely about the views: from the upper sections of the trail, walkers look down on Lac d'Allos some 400 metres below, as well as across to the Mont Pelat massif. The loop over the Pas du Lausson makes it possible to visit three distinct lakes in a single outing, which is why this route is one of the more popular choices in this part of Mercantour. Frequently asked questions How high up is Lac des Garrets? The lake sits at 2,621 metres above sea level, in a rocky cirque right on the border between the Alpes-Maritimes and Alpes-de-Haute-Provence departments. Does the lake hold water all year round? Not at a constant level — strong summer evaporation shrinks it noticeably, and it freezes over for several months each winter. Is the trail difficult? It's a high-mountain route with several hundred metres of elevation gain, so decent fitness is needed, but the technical difficulty is low — the main factors to plan around are altitude and weather conditions. When is the best time to go? Between May and October, once the passes and access trails are free of snow and the access road to the Laus parking area is open. Can this hike be combined with other lakes? Yes — a popular loop links Lac des Garrets with Lac de la Petite Cayolle and the Pas du Lausson pass, taking in a view of Lac d'Allos along the way.
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Lac de Bouvent
Bourg-en-Bresse
Lac de Bouvent is a roughly 21-hectare man-made lake at the heart of the Parc de Bouvent, a leisure park on the edge of Bourg-en-Bresse, the capital of the Ain department in the Auvergne-Rhône-Alpes region. The park itself spans about 56 hectares of green space and sits only a few minutes from the town centre, making it an easy half-day or full-day outing for locals and visitors passing through the area alike. What is there to do at the lake? Swimming is the main draw. From mid-May to late August, a supervised bathing area operates on the beach, so families can get in the water with lifeguards on watch. Grassy banks around the shore are set up for picnicking, with barbecue spots dotted along the way, and there's a beach volleyball court plus play areas for younger children right by the water. The lake also serves as a base for watersports. Sailing and kayaking schools run here, and certified instructors lead supervised rowing sessions. Visitors can also try catamaran sailing, windsurfing or stand-up paddleboarding — the range covers everything from a first try to a more serious session on the water. Can you fish at Lac de Bouvent? Yes. The park has designated fishing grounds stocked with first- and second-category fish, drawing anglers from across the area. Fishing follows its own rules and generally requires a separate permit or fee, so it's worth checking the current terms before heading out. What if you'd rather stay on dry land? Beyond the water, the park has plenty to offer. There's a golf facility with two short courses — a 9-hole and a compact 6-hole layout — good for a quick round without committing a whole day. Disc golf players have their own course, and there are dedicated pétanque pitches for a more traditional game. An outdoor fitness area with strength-training equipment sits alongside climbing blocks, and a bike park gives younger riders a place to practise. A snack bar on site covers anyone who gets hungry mid-visit. What does it cost, and when is it open? Access to the supervised bathing area is charged during the summer season — in 2026, the standard rate was €4.60 for adults and €2.30 for children aged 2 to 16 and students, with the wider park becoming free to enter from late August onward, fishing excluded, which is charged separately year-round. Rates and opening hours can shift from one season to the next, so it's worth double-checking before a visit. How do you get to Lac de Bouvent? The park sits on allée Louis Robin in Bourg-en-Bresse, within easy reach of the town centre by car, bike, or on foot for anyone staying nearby. That closeness to town is part of what makes Bouvent function almost like a local "central park" — a green space residents return to for a walk, a run, or a quiet afternoon well outside the swimming season too. Frequently asked questions Is swimming in the lake safe and supervised? Yes — from mid-May to late August, lifeguards are on duty at the beach and the bathing zone is clearly marked and monitored. Can you rent watersports equipment at the park? On-site schools and activity points let visitors try kayaking, catamaran sailing, or windsurfing under instructor supervision. Is entry to the park charged all year round? No — the fee mainly applies to the summer bathing area and to fishing; outside the summer season, access to the park grounds themselves is free. Is Lac de Bouvent a good day out with kids? Yes — the beach, play areas, volleyball court, and gentle paths around the lake make it a family-friendly spot. Is there somewhere to eat near the lake? Yes, there's an on-site snack bar, along with picnic and barbecue areas scattered around the park.
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estany de Font Negra
Encamp
Estany de Font Negra is a glacial mountain lake straddling the border between Andorra and France, sitting at roughly 2,260 metres in the Pyrenees. Its Catalan name translates literally as "lake of the black spring," and the same body of water is also commonly known as Estany de les Abelletes. The lake lies within Andorra's Encamp parish, just above the town of Pas de la Casa and close to the summit of Pic de Font Negra. It marks the source of the Ariège river, a tributary of the Garonne, making this modest alpine lake one of the headwaters of a much larger river system on the French side of the range. Where exactly is the lake located? Estany de Font Negra sits right on the international boundary: part of the lake belongs to Andorra's Encamp parish, the other part to the French commune of Porta, in the Cerdanya region. For decades the exact line of the border here was disputed — Andorran maps drew it through the middle of the lake, while French maps claimed the entire body of water as French territory. The dispute was finally settled in 2012, when both countries agreed on a boundary that splits the lake roughly in half. Six markers were installed on site to fix the new line — three stone pillars cut from local granite and three engraved rocks — the only markers of their kind anywhere along Andorra's border. How do you get there on foot? The most common starting point is Pas de la Casa, from where a hiking trail climbs up and over the Coll dels Isards pass before dropping down to the lakeshore. The route requires no climbing gear or technical skill, though hikers should still plan around mountain weather and wear proper footwear given the altitude. The trail also forms part of longer routes linking the eastern Andorran Pyrenees with the western Cerdanya valley, popular with summer walkers exploring this stretch of the range. From the lake, some hikers continue upward toward nearby summits such as Pic Negre d'Envalira and Pic d'Envalira. What is there to do at the lake? Estany de Font Negra is primarily a hiking destination and a favourite spot for summer picnics, surrounded by high-altitude meadows and rocky slopes that make for a natural resting point after the climb from Pas de la Casa. One quirk that amuses visitors is the border itself running through the water: a fish caught on one side of the lake technically comes from a different country than one caught a few metres away on the other side — an unusually literal piece of political geography for such a small, quiet spot. FAQ Is Estany de Font Negra the same lake as Estany de les Abelletes? Yes, both names refer to the same lake; Estany de les Abelletes is simply an alternative name still in common use. Is the lake in Andorra or in France? Technically both — the international border runs straight through it, following the boundary agreement reached in 2012. What is the usual hiking route to the lake? Most visitors approach from Pas de la Casa via the Coll dels Isards pass; the trail is non-technical and doesn't require climbing equipment. Which river originates at this lake? The lake feeds the Ariège river, a tributary of the Garonne that continues on through France. Is it a good spot for a summer rest stop? Yes, it's a popular picnic spot and a natural break point on hiking routes connecting Andorra with the French Cerdanya valley.
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Lac de l'Orceyrette
Villar-Saint-Pancrace
Lac de l'Orceyrette is a mountain lake sitting at 1,927 metres above sea level in the commune of Villar-Saint-Pancrace, in the Briançonnais area of the Hautes-Alpes, a short distance from Briançon. It lies inside the Bois des Ayes nature reserve, established in 1991, surrounded by old-growth larch and Swiss stone pine, with the summit of Pic de Peyre Eyraute (2,903 m) rising above the far shore. It ranks among the most visited lakes in this corner of the French Alps, drawing hikers and anglers alike. Where exactly is the lake? The lake sits in the mountains south of Briançon, fed by the Torrent des Ayes and, closer to the lake itself, the Torrent de l'Orceyrette. It covers roughly 4 hectares and began as a natural glacial lake. Since the 1950s its water level has been controlled by a small dam fitted with a sluice gate, which lets managers adjust the volume held back depending on the season. How do you get there? Most visitors start from Villar-Saint-Pancrace, following a forest road towards the hamlet of Les Ayes. The walking route passes the Chalets des Ayes (1,715 m) and continues to Plan Peyron (1,860 m), from where the lake is close by. The GR5 long-distance trail also runs through the area. The path opens across pastureland before entering the Bois des Ayes forest, passing a waterfall along the way. It's an easy, family-friendly outing, though the round trip still takes a few hours on foot. What is there to see around the lake? The shoreline is lined with larch woodland mixed with mature Swiss stone pines (pinus cembra); in autumn the larches turn a warm orange that stands out against the pines' dark green, making that season particularly photogenic. The water holds brown trout, rainbow trout and char, and the lake is classed as a first-category fishing water, popular with anglers throughout the season. The surrounding forest also shelters bird species typical of the high Alps, including the Eurasian pygmy owl, Tengmalm's owl and the capercaillie. The setting has been used more than once as a filming location, including for the French television series "Alex Hugo" and the 2015 film "Marseille." When is the best time to visit? The trail is generally open from March through October. In summer the access road can be driven for part of the way, which brings noticeably more visitors to the shore — many people instead recommend spring or autumn, when the surroundings are quieter and, in autumn, the larch colour is at its best. In winter the area around the lake can still be reached on snowshoes or ski touring gear, though that requires more experience and proper equipment. Frequently asked questions How high up is Lac de l'Orceyrette? The lake sits at 1,927 metres above sea level. Which commune is it part of? It belongs administratively to Villar-Saint-Pancrace, in the Hautes-Alpes department. Can you drive there? Only partway — a forest road reaches the area near the Chalets des Ayes, and the final stretch to the lake has to be walked. Can you fish in the lake? Yes, it's a first-category fishing water stocked with brown trout, rainbow trout and char. Is the walk suitable for children? Yes, it's considered an easy, family-friendly hike, though the round trip takes a few hours, so plan accordingly.
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Lac de Pouchergues
Loudenvielle
Lac de Pouchergues is a mountain lake in the commune of Loudenvielle, in the Louron valley, in the Hautes-Pyrénées department of southern France. Sitting at roughly 2,100 metres above sea level below the rocky face of the Clarabide peak (3,020 m), it belongs to a chain of high-altitude reservoirs fed by streams draining the surrounding ridges. It draws hikers looking for quiet, wide-open scenery typical of the central Pyrenees, away from the valley's busier trails. Where exactly is the lake? Lac de Pouchergues lies in the upper Louron valley, close to the border with the Haute-Garonne department and not far from the French-Spanish frontier. The lake is linked to the neighbouring Lac de Caillaouas, and together the two reservoirs feed the La Soula hydroelectric power station through a shared penstock. Because of this intake, the water level can vary noticeably over the course of a season. How do you get there? The usual trailhead is Pont de Prat, a bridge in the upper Louron valley at about 1,230 metres. From there the path follows the Clarabide gorges, passes the Vierge de la Santète and the Refuge de la Soula, then tracks the Neste de Clarabide stream up to the lake. The climb typically takes around 3 to 3.5 hours one way. The final stretch near the lake can be steep and slippery after rain, so sturdy hiking boots are worth bringing. What stands out about the lake itself? The lake reaches a depth of 32 metres, a notable figure for a mountain reservoir of its size. It has been studied since the early twentieth century: in 1921 the French researcher Ludovic Gaurier carried out bathymetric surveys and recorded a large trout population. The surroundings are classic high-mountain terrain — bare rock, alpine pasture and sparse vegetation framing water whose colour shifts with the season and the light. Who is this hike for? The route to Lac de Pouchergues is moderately demanding: its length and cumulative elevation gain call for reasonable fitness, though no climbing gear is needed. Stronger hikers can extend the day toward Lac de Clarabide, or, for the most committed, all the way to Lac du Portillon — an option that turns the outing into a considerably longer and tougher day. FAQ How high up is Lac de Pouchergues? The lake sits at roughly 2,100 metres above sea level. Where's the best starting point for the trail? Most hikers start from Pont de Prat, in the upper Louron valley. How long does it take to reach the lake? The ascent from Pont de Prat usually takes around 3 to 3.5 hours. Can you fish in the lake? Historical surveys recorded a large trout population, but check current local fishing regulations before heading out. Is the trail suitable for beginners? It's a moderate route — long with substantial elevation gain but no scrambling or climbing — so it calls for decent fitness and proper footwear rather than technical experience.
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Lac Petrus
Saint-Étienne-de-Tinée
Lac Petrus is a small mountain lake in the commune of Saint-Étienne-de-Tinée, tucked into the upper reaches of the Haute-Tinée valley within the Mercantour National Park. Sitting at roughly 2300 metres above sea level, it occupies a scree-strewn side valley known as the Malignas, just below the historic Chemin de l'Énergie trail. It isn't the largest or best-known lake in this part of the Alpes-Maritimes, but it forms a key waypoint on the routes linking the Vens and Rabuons valleys. Where exactly is Lac Petrus? The lake sits on a high-altitude stretch between the Lacs de Vens and Lac de Rabuons, in terrain dominated by rocky ridgelines and loose stone slopes typical of the higher Mercantour massif. Visitors who have walked this section note that the water level has dropped somewhat in recent years, leaving the lake noticeably smaller than it once was — a pattern also seen at several neighbouring lakes in the same valley. What is the Chemin de l'Énergie? Lac Petrus lies directly along the Chemin de l'Énergie, a historic walking route that follows former hydroelectric infrastructure built to channel water from high-altitude lakes down to power stations in the valley below. Part of the path runs through tunnels cut into the rock; the section between Plan de Ténibre and Lac Pétrus was closed for a period after rockfalls, and the local department carried out repair works there in 2021 and 2022. This gives the area around the lake an unusual character, mixing traces of engineering history with a genuinely wild high-mountain setting. How do you get to Lac Petrus? Most routes start from Saint-Étienne-de-Tinée, from the large car park by the Maison du Parc, just past the local secondary school. Lac Petrus is often included in a longer, multi-day trekking loop that also takes in Lac Fer, Lac des Babarottes, and the Lacs de Vens, continuing on towards the Aiguilles de Tortisse. Shorter, single-day options typically combine Lac Petrus with nearby lakes such as Lac de Rabuons, Lac Chaffour, or Lac du Cimon, forming a loop with varied elevation gain and loss. What should you know before setting out? The trails around Lac Petrus run through Mercantour National Park, where nature-protection rules apply: no camping outside designated areas, dogs must be kept on a lead, and picking plants or collecting mineral samples is restricted. At this altitude, weather can turn quickly even in summer, so it's worth checking the forecast and current trail conditions beforehand — the national park publishes updates on path closures, including sections of the Chemin de l'Énergie. FAQ How high up is Lac Petrus? The lake sits at around 2300 metres above sea level, in the high-altitude part of the Haute-Tinée valley. Is Lac Petrus a large lake? No — it's a relatively small body of water, and its surface area has shrunk somewhat in recent years as the water level has dropped. Where's the best starting point for the hike to Lac Petrus? The car park at the Maison du Parc in Saint-Étienne-de-Tinée, from where trails lead towards the Chemin de l'Énergie and on to the lake. Which other lakes can be combined with a visit to Lac Petrus? Lac Petrus lies close to Lac Fer, Lac des Babarottes, the Lacs de Vens, and Lac de Rabuons — popular routes link several of these lakes into a single loop. Are there any special rules to follow near the lake? Yes, the area lies within Mercantour National Park, so nature-protection regulations apply regarding camping, dogs, and collecting plants or samples.
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Lac de Longet
Saint-Paul-sur-Ubaye
Lac de Longet is a high-mountain lake sitting on the territory of Saint-Paul-sur-Ubaye, in the Alpes-de-Haute-Provence department, right against the French-Italian border. Resting at 2,641 metres above sea level and covering just under three hectares, it marks the highest point of the entire Ubaye valley. It is here, too, that the Ubaye river itself rises — a tributary of the Durance that then flows the length of the valley bearing its name. Where exactly is the lake? Lac de Longet lies within the Chambeyron-Oronaye massif, a range stretching roughly 20 km from the Col du Longet to the Col de Larche. The lake sits just a short distance from the Col de Longet, a pass that forms the natural crossing point into Italy. From the surrounding ridgelines, hikers can pick out several regional summits: Tête des Toillies (3,175 m), Roche Noire (3,134 m) and Cristillan (2,957 m), with Mont Viso (3,841 m) visible on clear days across the border in Italy. A handful of smaller satellite tarns sit just above the main lake. How do you get there? Most visitors start from Maljasset, the last hamlet in the Haute Ubaye, reached by the D25 road out of Saint-Paul-sur-Ubaye. From there, a trail follows the Ubaye upstream to its source, with the climb typically taking 4 to 4.5 hours depending on fitness and season. The route is demanding but achievable for well-prepared hikers, with no technical climbing gear required. The area also forms part of the multi-day GRP Tour du Chambeyron, a long-distance route popular with hikers exploring the Alps of southern France. An alternative approach comes from the Italian side, starting in Chianale and crossing the Col Agnel — though this option means crossing the international border on foot. Nature and geology around the lake The surroundings sit within the alpine vegetation belt, which gives way further up to the nival zone of bare rock and permanent snow. Close to the shoreline, small waterlogged meadows host bicolour sedge, alongside patches of limestone scree; botanists have catalogued more than twenty distinctive plant species in the immediate area. Among the wildlife found here are the rock ptarmigan and the bearded vulture, both considered particularly significant for this type of high-altitude habitat. The bedrock itself combines siliceous rock dating to the Permian period with schists and marbles from the Jurassic and Cretaceous — remnants of the ancient Tethys Ocean roughly 150 million years old, later reshaped by Alpine mountain-building around 40 million years ago. Fishing at Lac de Longet The lake falls under first-category fishing waters and follows the specific regulations that apply to mountain lakes. It is stocked with common trout, making it a destination for anglers visiting the Haute Ubaye during the summer season — checking local fishing rules before setting out is recommended. Frequently asked questions How high up is Lac de Longet? The lake sits at 2,641 metres above sea level, making it the highest point in the Ubaye valley. How long does the hike to the lake take? Starting from Maljasset, the climb usually takes between 4 and 4.5 hours one way. Can you fish at the lake? Yes — it is classified as first-category water and stocked with common trout, though mountain-lake fishing regulations apply. Is Mont Viso visible from the lake? On clear days, Mont Viso (3,841 m) can be seen across the Italian border from the surrounding ridges. Is there a route from the Italian side? Yes, an alternative approach starts in Chianale and crosses the Col Agnel into France.
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Lac des Babarottes
Saint-Étienne-de-Tinée
Lac des Babarottes is a small mountain lake sitting at 2,413 metres above sea level in the commune of Saint-Étienne-de-Tinée, in the Alpes-Maritimes department of southeastern France. It lies inside Mercantour National Park, in a side branch of the upper Tinée valley (Haute-Tinée), right next to the better-known Lacs de Vens group. The water surface covers roughly 1.93 hectares, making it one of the smaller lakes in this corner of the massif. How do you reach the lake? Lac des Babarottes is accessible on foot only, and most hikers start from the Vens car park, following a marked trail that climbs into the side valley. Starting from the Vens car park From the car park, the lake sits about 9 km away, and the walk takes between 2 hours 15 minutes and 2 hours 45 minutes one way. A variant known as the "Pas des Pêcheurs" offers a shortcut that trims some time off the standard approach. Starting from the Vens refuge A much shorter option begins at the Refuge de Vens, from which the lake is only around 1.5 km away — about 40 to 50 minutes of walking. This stretch is often recommended as an easy add-on for hikers already staying at the refuge while exploring the surrounding lakes. The Babarottes ridge and surroundings Above the lake rises the Crête des Babarottes, a ridge reaching roughly 2,506 metres. Climbing onto the ridge, or continuing to nearby summits such as the Cime des Babarottes and the neighbouring Cime de Fourchas, opens up views over the Tinée valley and, in the distance, the Auron ski resort. Because of this position, the lake works both as a destination in its own right and as a waypoint on longer routes heading into the higher part of the massif. Its place among the Haute-Tinée lakes Lac des Babarottes sits along several well-known loop routes that link the lakes of the upper Tinée valley. Multi-day itineraries commonly pass Lac Petrus and Lac Fer before reaching Babarottes, then continue up to the Lacs de Vens and on toward the Aiguilles de Tortisse. Positioned between the lower lakes and the higher Vens group, Babarottes functions as a natural staging point on two- or three-day hikes that overnight at the refuge. Fishing The lake falls under the management of the local angling association, AAPPMA Haute-Tinée. Spinning tackle reportedly gets good results here, although the lake is no longer regularly restocked with fingerlings, so the fish population is largely self-sustaining. Anyone planning to fish should check current local rules and closed seasons that apply to Mercantour's waters before heading out. FAQ How high up is Lac des Babarottes? The lake lies at an altitude of 2,413 metres. How big is the lake? Its surface area is about 1.93 hectares — a small alpine lake. How long does it take to reach the lake? Roughly 2 hours 15 minutes to 2 hours 45 minutes from the Vens car park, or just 40 to 50 minutes from the Vens refuge. Can you fish here? Yes. The lake is managed by AAPPMA Haute-Tinée, and casting/spinning tends to work well, though restocking has stopped. Are there other lakes nearby worth visiting? Yes — within the same commune of Saint-Étienne-de-Tinée you'll also find Lac Petrus, Lac Fer, and the Lacs de Vens group, all commonly combined with Babarottes on a single loop hike. Which map covers this area? The IGN sheet "Haute Tinée 1" (3639 OT) covers the lake and surrounding terrain.
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Lac de Binaros Inférieur
Bagnères-de-Bigorre
Lac de Binaros Inférieur is a small mountain lake in the municipality of Bagnères-de-Bigorre, in the Hautes-Pyrénées department, sitting on the south-facing slope of the Lesponne valley. At 1,841 metres above sea level, it forms the lower of the two Binaros lakes, its counterpart, Lac de Binaros Supérieur, lying just above it at 1,857 metres. Locally the lower lake is also known as Lac de Moungès. How big is the lake? Lac de Binaros Inférieur covers only about 0.4 hectares and reaches a depth of roughly 2 metres. It is a typical small Pyrenean tarn, fed by water draining down from the higher Lac de l'Œuf and feeding into the Adour de Lesponne stream system. Tucked below the surrounding ridgeline, the water stays cold even in summer. What lives in the lake? Brown trout (truite fario) and minnows (vairons) live in its waters. Fish here tend to be wary, which is typical of high-altitude lakes that see few visitors, so anglers should expect a cautious, sparse population rather than easy catches. How do you get there? The starting point for the hike is the Col de la Courade, at around 1,270 metres. To reach it from Bagnères-de-Bigorre, take the D935 toward Campan, then head into the Lesponne valley past Pont d'Arrimoula on the D154. From the col, the climb to the lake takes roughly two hours on foot. The full round trip covers just over 10 kilometres with about 735 metres of elevation gain, which makes it a demanding outing best planned as a full-day hike with proper trekking gear. What else is worth seeing nearby? The lakes sit beneath Pic de Péne Nère (2,256 m), which offers views over both the Lesponne and Campan valleys. The area falls within a ZNIEFF protected zone (type 1 and type 2, covering the upper Adour basin), recognised for its high-altitude flora and fauna — a good reason to stick to marked paths. The wider massif also includes Pic du Midi de Bigorre, visible from several points along the route. Frequently asked questions Where exactly is Lac de Binaros Inférieur? In the municipality of Bagnères-de-Bigorre, Hautes-Pyrénées, on the south-facing slope of the Lesponne valley, at 1,841 metres. How does it differ from Lac de Binaros Supérieur? It is the lower of the two Binaros lakes, sitting 16 metres below the upper lake (1,857 m) and smaller in its surrounding terrain. How long does it take to reach the lake? From the Col de la Courade trailhead (1,270 m), the climb takes about two hours one way. Can you fish there? Yes, brown trout and minnows live in the lake, though the fish population is small and wary. Is the hike difficult? Yes — with a round trip of over 10 kilometres and 735 metres of elevation gain, it is considered a demanding route.
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Lac Scluos
Valdeblore
Lac Scluos is a small mountain lake sitting at 2,132 metres above sea level, in the commune of Valdeblore in the Alpes-Maritimes department, within the boundaries of Mercantour National Park. Covering less than a hectare, the lake lies tucked among larch forests at the meeting point of the Vésubie and Tinée valleys, which means it can be reached from two distinct directions. Where is Lac Scluos located? The lake sits high in the Mercantour massif, near the Col de Salèse and Col de Mercière passes. Larch stands typical of this altitude surround the water, and the area sees far fewer visitors than the well-trodden trails lower in the Vésubie valley. How do you get there? The most common approach starts from Boréon, a hamlet in the commune of Saint-Martin-Vésubie. A road toward the Col de Salèse leads to a parking area at around 1,679 metres, from where a wide trail climbs through the forest toward the pass, passing the Chardole mineral spring at roughly 1,924 metres. The final stretch to the lake — about fifteen minutes — has no signposts, only cairns marking the way, so careful navigation is needed on this last section. A second route climbs from the Tinée valley side, through the vallon de Mollières — a hamlet within the commune of Valdeblore — toward the Col de Mercière. Near that pass stands a stone memorial commemorating a plane crash, one of the few traces of history in this remote setting. How long does the hike take? From the Col de Salèse parking area, the climb takes about four and a half hours, with roughly three hours back down by the same route. Round trip, that adds up to close to seven and a half hours, with an elevation gain of around 450 metres. The trail poses no technical difficulty, but its length and partly unmarked final section make it a moderately demanding outing. May through October is the best window, once snow has cleared from the higher sections. What wildlife might you see? The surroundings host species typical of Mercantour's high country: chamois, mouflon, and rock ptarmigan. Because the area draws few hikers, quiet early-morning or late-afternoon visits offer good chances of spotting animals undisturbed. Frequently asked questions How high up is Lac Scluos? The lake sits at an altitude of 2,132 metres. Is the trail to Lac Scluos difficult? It requires no technical climbing skills, but it is long — up to seven and a half hours round trip — and the last stretch follows an unmarked path indicated only by cairns. Where's the best starting point? The most popular trailhead is the parking area on the road to Col de Salèse, reached from Boréon in the commune of Saint-Martin-Vésubie. An alternative approach climbs from the vallon de Mollières in the commune of Valdeblore, via the Col de Mercière. When is the best time to visit? Between May and October, once the upper sections of the trail are free of snow. Is there anything else worth seeing nearby? The route passes the Chardole mineral spring, and a stone memorial near Col de Mercière commemorates victims of a plane crash.
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Lac des Rouies
Saint-Christophe-en-Oisans
Lac des Rouies is a high-altitude glacial lake in the Écrins massif, within the commune of Saint-Christophe-en-Oisans in the Isère department (Auvergne-Rhône-Alpes region). Sitting at 2,722 metres above sea level, it fills a cirque that formed after the retreat of the La Lavey glacier, flanked by the peaks of Cime du Vallon (3,406 m) and Olan (3,564 m). The lake covers roughly 7.3 hectares. Where does the lake's name come from? The name comes from the nearby summit of Les Rouies (3,589 m), which straddles the border between the Isère and Hautes-Alpes departments and separates the Vénéon and Séveraisse valleys. The mountain is known for its broad, glaciated plateau above roughly 3,400 metres, which makes it one of the more approachable high-altitude mountaineering objectives in the southern part of the Écrins massif. How did the lake form? Lac des Rouies fills a glacial basin that was uncovered as the La Lavey glacier retreated during the 1950s. The same process produced several other high alpine lakes in the surrounding area, including Eychauda, Arsine and Quirlies - all shaped by shrinking ice in the Écrins over the course of the twentieth century. How do you get to the lake? The usual starting point is the Refuge de la Lavey, reached from Saint-Christophe-en-Oisans by taking the D530 road toward the hamlet of Champhorent. From the refuge, the trail follows the Vallon de la Lavey, also known locally as the Muande valley, climbing about 950 metres over roughly 5.5 kilometres one way; the full round trip takes around four hours. Lower down, the path crosses moorland covered in heather and rhododendron; higher up, it moves onto rockier terrain where cairns mark the way across a scree slope. The final stretch calls for sure footing and steady stamina, and the descent - particularly on the way back toward Champhorent - is long and can feel tiring on the knees. Practical note: the Refuge de la Lavey closed on 15 July 2025 for a two-year renovation, with reopening planned for summer 2027. It is worth checking current access and lodging options in the area before setting out. What should hikers know before setting off? The route is not technically demanding, but the elevation gain and the rocky, scree-covered upper section call for reasonable fitness and sturdy trekking footwear. The lake lies within the Écrins National Park, so park regulations apply, including restrictions on wild camping outside designated zones. FAQ How high is Lac des Rouies? The lake sits at 2,722 metres above sea level, in a glacial cirque within the Écrins massif. Where does the hike start? From Saint-Christophe-en-Oisans, following the D530 road to Champhorent, the trailhead for the Refuge de la Lavey. How long does the hike take? The round trip from the Lavey refuge takes about four hours, covering roughly 5.5 kilometres one way with about 950 metres of elevation gain. Can you stay overnight near the lake? The closest option is the Refuge de la Lavey, but it is closed from July 2025 until summer 2027 for renovation work. Where does the lake's name come from? It is named after the neighbouring peak of Les Rouies (3,589 m), which overlooks the valley from the Isère-Hautes-Alpes border.
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Lac de la Muande
Saint-Christophe-en-Oisans
Lac de la Muande is a high-mountain lake sitting at about 2,380 m altitude in the Vallon de la Lavey, a side valley opening onto the Vénéon valley, within the commune of Saint-Christophe-en-Oisans (Isère). It lies inside the Écrins National Park, in the Écrins massif, and is one of three lakes in this same valley alongside Lac des Rouies and Lac des Bèches — three separate, independent bodies of water. How did the lake form? Lac de la Muande is a relatively young lake, born from the retreat of the glacier feeding the valley, known as the Glacier de la Muande (or Glacier du Fond). Because of this recent origin, the lake is still evolving: its shorelines are unstable, and in the not-too-distant past glacier ice was in direct contact with the water. The ground around the lake can therefore be loose scree or slippery moraine, particularly right at the water's edge. How big is the lake? The lake measures roughly 463 by 216 metres, covering an area of about 7 hectares. That makes it one of the larger glacial lakes in this part of the Écrins massif, though its exact shape and size can keep shifting as the surrounding ice continues to melt and moraine material is deposited. How do you get to Lac de la Muande? The usual starting point is Champhorent, reached via the D530 road from Bourg-d'Oisans through La Bérarde and Saint-Christophe-en-Oisans, where an organised parking area is available. From there, the trail follows the long Muande valley alongside the Muande stream — the elevation gain is gentle, but the distance is substantial, and most of the route is well marked. The final stretch before the lake itself is trickier: there is no marked path, and the terrain turns into rocky scree or a steep, slippery moraine, partly indicated by cairns. Along the way, the trail passes the Refuge de la Lavey (1,797 m), which makes it possible to split the hike over two days. It also serves as a convenient base for reaching the valley's other lakes — Lac des Rouies and Lac des Bèches — though each requires its own separate approach and lies in a different part of the valley. Is the hike difficult? The valley approach up to the refuge is considered technically easy despite its length. The difficulty increases only on the last section to the lake, where there is no clear trail and the ground can be unstable — extra caution is advised, especially after rain or on wet rock. What should you know before you go? The lake sits in a remote, high-altitude setting typical of the Écrins massif, with no facilities right at the shore. Allow plenty of time given the length of the approach, and bring footwear suited to the final unmarked, uneven stretch. FAQ How high up is Lac de la Muande? The lake sits at around 2,380 m altitude, in the Vallon de la Lavey. How did this lake form? It formed as the glacier feeding the valley (Glacier de la Muande / Glacier du Fond) retreated, which is why it is still changing and its banks remain unstable. Is Lac de la Muande the same as Lac des Rouies? No. They are two separate lakes in the same Lavey valley, together with a third one, Lac des Bèches — each reached by its own approach. Where do you start the hike? From the parking area at Champhorent, reached via the D530 road from Bourg-d'Oisans through La Bérarde and Saint-Christophe-en-Oisans. Can you break the hike over two days? Yes, the Refuge de la Lavey (1,797 m) lies along the route and allows the trip to be split into two days.
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Lac du Pontet
Villar-d'Arêne
Lac du Pontet is a small alpine lake in the commune of Villar-d'Arêne, in the Hautes-Alpes department of France, right on the doorstep of Écrins National Park. Sitting at roughly 1,982 metres above sea level on a sunny stretch of pasture above the Romanche valley, just a few kilometres from La Grave, it is one of those Alpine spots that pairs an easy walk with a front-row view of one of France's most famous peaks, La Meije. Where exactly is the lake? The lake lies above the hamlet of Les Cours, part of Villar-d'Arêne, on the slope facing the Écrins massif across the Romanche valley. That position turns the shoreline into a natural viewpoint, opening onto the peaks of the national park — from the Combeynot range to Les Agneaux and La Meije itself. How do you get there? Access starts on the D1091, the road linking Grenoble and Briançon. At Villar-d'Arêne, heading toward the Col du Lautaret, a turn onto the D307 leads to the hamlet of Les Cours. A small car park there marks the start of the walk: a short, easy path that takes about twenty minutes to reach the lake. Starting from the centre of Villar-d'Arêne instead means roughly an hour and a half on foot, while from Les Cours itself the lake is around 45 minutes away. The route needs no mountaineering experience and works well for families with children. What is there to see along the way? The path crosses sunny alpine pastures where marmots are a common sight in summer, and edelweiss can sometimes be spotted in season. The lake's surface itself shifts in colour with the light, from turquoise to deep blue, mirroring the surrounding peaks. When is the best time to visit? The lake is easiest to reach between June and September, once the access road and paths are clear of snow. In winter the road up to the Les Cours car park is not cleared, so the outing has to start on foot or on snowshoes from the centre of Villar-d'Arêne — it is also a well-known destination for ski touring. In summer the area draws hikers, photographers, anglers, and people looking for a spot to camp overnight. FAQ How high up is Lac du Pontet? The lake sits at an altitude of roughly 1,982 metres. How long does the hike take? From the car park at the Les Cours hamlet, it takes about 20 minutes. Starting from the centre of Villar-d'Arêne takes around 1.5 hours, and from Les Cours itself about 45 minutes. Is the walk suitable for children? Yes, the stretch from the car park is short and easy, which makes the lake a popular family outing. What can you see from the lake? The shoreline looks straight onto the Écrins massif, including the Combeynot range, Les Agneaux, and the unmistakable profile of La Meije above the Romanche valley. Can you drive all the way to the lake? No — cars can only reach the small car park at Les Cours; the rest of the way is on foot. Is the lake accessible in winter? The access road is not cleared of snow, so winter visits start from the centre of Villar-d'Arêne, usually on snowshoes or by ski touring. Is there wildlife around the lake? Yes, marmots are frequently seen on the surrounding meadows, and edelweiss flowers in season.
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Lac de la Montagnette
Saint-Étienne-de-Tinée
Lac de la Montagnette is a high-altitude lake in the commune of Saint-Étienne-de-Tinée, in the Alpes-Maritimes department, within the boundaries of Mercantour National Park. It sits in the Haute-Tinée valley at roughly 2755 m above sea level, inside a rocky glacial cirque that also holds several other lakes sharing part of the same name. Where exactly is the lake? The lake occupies the upper section of a cirque that also contains Lac Chaffour and Lac du Cimon. Lac de la Montagnette sits above both of them, along the trail that climbs from Lac de Rabuons toward the Pas de Rabuons pass. This distinction matters: although the three lakes lie close together in the same rocky basin, they are three separate bodies of water, not different names for the same lake. Nearby, in the Vens lakes area, there is also a lake with a similar name — Lac de la Montagnette-de-Vens (about 2606 m) — which is easy to confuse with this one but is a distinct lake in a different valley cluster. What does the surrounding landscape look like? The setting is classic high-mountain, mineral terrain: bare rock, scree slopes and ridgelines, with views toward the peaks of the Haute-Tinée, including Mont Ténibre (3031 m). Marmots and chamois are regularly seen in the area. In summer, as snow patches melt around the shoreline, the water typically takes on the vivid turquoise or emerald tone common to glacial lakes at this altitude. How do you get to Lac de la Montagnette? Access runs through Mercantour National Park, most commonly starting from Lac de Rabuons, the largest lake in the Tinée valley, where a small stone refuge (refuge de Rabuons) stands on its shore. From there, the trail climbs past Lac Chaffour and Lac du Cimon before reaching Lac de la Montagnette, continuing further toward the Pas de Rabuons. The route is high-mountain terrain with substantial elevation gain and rocky sections, so it calls for good physical condition, proper footwear, and a check of weather conditions before setting out. When is the best time to visit? Given the altitude and long-lingering snow cover, the practical hiking season is essentially limited to summer and early autumn. Snow patches can persist on the trails into early summer, and weather in the higher reaches of the Mercantour can change quickly even in the warm months. What rules apply inside the national park? The area falls under Mercantour National Park regulations: camping is prohibited outside designated zones, picking plants and disturbing wildlife is forbidden, and dogs must be kept on a leash at all times. Breaking these rules can result in fines of up to 1500 euros, so it is worth reviewing the park's rules before setting out. Frequently asked questions Is Lac de la Montagnette the same lake as Lac du Cimon or Lac Chaffour? No. All three lie close together in the same mountain cirque, but they are separate lakes — Lac de la Montagnette sits higher up, along the trail toward the Pas de Rabuons. Is there another lake with a similar name nearby? Yes — Lac de la Montagnette-de-Vens, located in the Vens lakes area at a somewhat lower altitude. It is a different lake from the one described here. How long does it take to reach the lake? It depends on the starting point. The route runs through high-mountain terrain in the Mercantour and generally calls for a full-day itinerary, often with an overnight stay near Lac de Rabuons. Is the trail difficult? Yes, the approach is considered demanding — it crosses rocky, high-altitude terrain with significant elevation gain, and suits hikers with prior mountain experience. Can you fish in the lake? Lakes in this part of the Mercantour are sometimes stocked with trout, but local national park rules apply at all times — check current regulations on site before fishing.
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Estany de l'Ànec
Formiguères
Estany de l'Ànec is a small mountain lake located within the commune of Formiguères, in the Pyrénées-Orientales department of southern France. Its Catalan name translates literally to "duck lake," reflecting the naming tradition still used for many small lakes across the Cerdagne and Capcir areas, where Catalan and French place names coexist side by side. The lake sits at an altitude of roughly 2,239 metres, placing it firmly in the high-mountain zone of the Eastern Pyrenees. Where exactly is Estany de l'Ànec? The lake lies within the territory of Formiguères, one of the historic villages of Capcir, a high plateau region on the eastern edge of the Pyrenees known for its glacial lakes and open, sparsely wooded terrain at altitude. Its coordinates are approximately 42.60°N, 2.00°E. The surrounding landscape alternates between patches of coniferous forest at lower elevations and bare, rocky-grassy ground higher up, cut through by streams flowing down from the surrounding peaks. What is the setting like around the lake? Estany de l'Ànec sits among a cluster of other lakes and tarns typical of the high Capcir plateau, including the well-known Camporells lakes, spread across a large glacial cirque within the same commune. The water surface reflects the surrounding summits, and the shoreline offers spots suitable for a rest stop or a picnic. The Font-Romeu ski resort lies a short distance away, illustrating how this part of the Pyrenees combines summer hiking with winter skiing. Can you reach the lake on foot? Formiguères and the wider Capcir area serve as a starting point for a dense network of hiking trails of varying difficulty, from easy family walks to longer routes into the higher mountains. Trails from the area lead, among other directions, toward the Serra de Mauri ridge and the Camporells plateau, a high-altitude basin dotted with numerous lakes. Because Estany de l'Ànec sits above 2,200 metres, reaching it is realistically an option for hikers prepared for mountain terrain rather than a casual stroll — it's worth checking the exact route and current conditions locally before setting out, since access can vary with season and snow cover. Who is this lake best suited for? The spot appeals mainly to hikers and landscape photographers drawn to quiet, high-altitude scenery away from crowds — the combination of altitude, open views, and proximity to other lakes makes the area around Estany de l'Ànec a rewarding destination for a longer mountain walk. Given its elevation and terrain, it is not a place for a light, low-altitude stroll: sturdy footwear and attention to mountain weather forecasts are advisable. Frequently asked questions What does the name Estany de l'Ànec mean? It is Catalan for "duck lake," a naming style common to lakes across the Cerdagne and Capcir region, where Catalan names persist even on the French side of the border. Which commune is the lake located in? It lies within the commune of Formiguères, in the Pyrénées-Orientales department. How high up is Estany de l'Ànec? At an altitude of about 2,239 metres, placing it in the high-mountain zone of the Eastern Pyrenees. Are there other lakes nearby? Yes — Formiguères and the broader Capcir plateau are known for a large concentration of mountain lakes and ponds, including the nearby Camporells lake group. Is the lake accessible year-round? Because of its altitude, access can be limited in winter and early spring due to snow cover; summer and early autumn are the most reliable seasons to visit.
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Lac de Maury
Saint-Amans-des-Cots
Lac de Maury is a man-made dam lake near Saint-Amans-des-Cots, in the Aveyron department of southern France. Built by damming a local river, the reservoir has grown far beyond its original technical purpose and is now one of the more popular outdoor leisure spots in the northern part of Aveyron. Its wooded shoreline and quiet rural setting draw families, water-sports fans, and travelers looking for an easy day trip away from the region's larger towns. Where is Lac de Maury located? The lake sits right by the village of Saint-Amans-des-Cots, in the northern reaches of Aveyron, roughly at coordinates 44.6627 N, 2.6680 E. This part of Aveyron is characterized by rolling green countryside dotted with reservoirs created over past decades through dam-building on smaller rivers. Lac de Maury is one of these artificial lakes, and like several of its neighbors, it now functions primarily as a recreation area rather than a piece of water-management infrastructure. What is there to do at the lake? The lake's main draw is a water park that opened directly on the water in 2019. It's built from floating inflatable structures anchored on the surface, offering slides, trampolines, jumping platforms, and a catapult-style feature that launches participants into the air. Floating water parks of this kind are especially popular with children and teenagers, though plenty of adults join in too, particularly on hot summer days. Beyond the inflatable park itself, a seasonal leisure area operates around the lake in summer, running additional games and activities for visitors. Small boats and pedal boats can also be rented on site, giving visitors a quieter way to explore the water at their own pace, away from the busier inflatable zone. When is the best time to visit? The water-based attractions run seasonally, mainly through the summer months when air and water temperatures make swimming and floating-park activities comfortable. Outside of the summer season, the lake remains a pleasant spot for a walk or a quiet break outdoors, though the inflatable park and rental services are not available. Who is Lac de Maury best suited for? The lake works particularly well as a family day out — children can spend hours on the floating water park while adults relax on the shore or take a pedal boat out. It's also a convenient option for travelers staying at nearby farm stays or campsites who want a nearby attraction that doesn't require a long drive. Frequently Asked Questions Can you swim at Lac de Maury? Yes, the lake is set up for swimming and water activities during the summer season, when the inflatable water park is also operating. What is the water park on the lake? It's a floating complex of inflatable attractions that opened in 2019, featuring slides, trampolines, and jumping structures set up directly on the water's surface. Is boat or pedal boat rental available? Yes, small boats and pedal boats can be rented at the lake, and they can be used independently of the inflatable water park. Is Lac de Maury suitable for children? Yes, it's one of the site's main draws. The water park and the seasonal leisure area are both geared toward families with children. Is there accommodation near the lake? The area around Saint-Amans-des-Cots has campsites and other lodging options, making it easy to combine a visit to the lake with a longer stay in Aveyron.
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Étangs du Picot
Auzat
Étangs du Picot is a chain of four mountain lakes in the commune of Auzat, in the Vicdessos valley, in the Ariège département of the French Pyrenees. It sits in the Couserans/Vicdessos area, where green pastures give way within a few hours' walk to bare, rocky glacial cirques. Where exactly are the Étangs du Picot? The lakes lie at the foot of the Picot peak, in a side valley branching off the Soulcem valley, one of the high valleys closing off the mountain block above Auzat. It is remote high-mountain terrain typical of Ariège's Pyrenees: bare granite ridges, sparse vegetation above 2,000 metres, and a quiet broken only by small waterfalls between the lakes. How many lakes are there, and at what altitude? The plural name is no accident — the group is made up of four lakes stacked one above the other on successive glacial steps: the first and lowest, at roughly 2,040 m, the second, at roughly 2,163 m, the third, the largest (about 5.7 hectares) and deepest (30–40 m), at roughly 2,286 m, the fourth and highest, at roughly 2,416 m. Rock steps separate the lakes, with small waterfalls where the water drops from one basin to the next. The uppermost lake sits in a stark rocky cirque, overlooked by the peaks of Picot (2,707 m) and Malcaras (2,865 m). How do you get to the Étangs du Picot? The usual starting point is the Étang de Soulcem, a reservoir lake reachable by car via the departmental road that runs from Auzat through the hamlet of Marc. The road is narrow and winding but driveable; there are parking areas near the Soulcem dam and a bit further on, at the start of the Chemin des Orris. One catch: this stretch of high mountain road is normally closed by prefectural order over winter, from November to May, right at Marc, which cuts off car access for most of the year outside summer. What is the trail like, and how hard is it? From the shore of the Étang de Soulcem, the trail climbs toward the Picot lakes, opening up views over the Vicdessos valley and the peaks around it along the way. The full loop covers about 10.6 km and, despite its modest length, counts as a demanding outing — mostly because of the elevation gain and the rocky, mineral ground underfoot. On some stretches, especially near the higher lakes, a bit of scrambling with hands is useful, though nothing here amounts to technical climbing. When is the best time to go? The best window runs from May to October, once the trail is clear of snow and the access road is open. Outside that period, expect snow on the upper sections and a road that may be shut. Frequently Asked Questions Is Étangs du Picot one lake or several? It is a group of four lakes arranged in a cascade, from about 2,040 m up to 2,416 m. Where's the best place to start the hike? The natural starting point is the Étang de Soulcem, which you can drive to via the road through Marc. Is the trail suitable for beginners? Given the elevation gain and rocky terrain, it is generally rated as difficult and better suited to hikers with some mountain experience. Which is the biggest of the four lakes? The third one, covering roughly 5.7 hectares and reaching 30–40 metres deep. Can you drive all the way to the lakes? No — you can only drive as far as the Étang de Soulcem; from there it's on foot along the mountain trail.
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Lac de Lamoura
Lamoura
Lac de Lamoura is the highest lake in the Jura department, sitting at 1,156 metres above sea level in the commune of Lamoura, deep in the Haut-Jura region of eastern France. Bordered by the Forêt du Massacre, one of the best-known forest tracts in the French Jura, the lake occupies a quiet basin where mountain scenery meets peat bogs and damp upland meadows typical of the high plateaus along the Swiss border. It draws local families for a swim in summer and snowshoers and cross-country skiers once the snow settles in. Where exactly is the lake located? Lac de Lamoura sits at coordinates 46.3953 N, 5.9819 E, right next to the village of Lamoura and a short drive from the well-known Les Rousses ski resort. The surrounding Haut-Jura area is known for its high pastures, fir and spruce forests, and a scattering of glacial lakes strung along the French-Swiss frontier. Because of the elevation, the climate around the lake stays noticeably cooler than in the lower parts of the department, which means a longer snow season and a shorter, more intense summer. Can you swim in Lac de Lamoura? Yes. The lake has a supervised bathing area that operates during the summer holidays, typically from the beginning of July to the end of August, with a lifeguard on duty in the afternoon hours. Access to the beach is free, as is the nearby parking. It is one of the few lakeside swimming spots in this part of the Jura sitting at such an altitude, so the water tends to stay bracingly cool even at the height of summer. Is fishing allowed on the lake? Fishing is permitted during a set season, generally running from the first Saturday of June through the last Sunday of November. Local rules limit anglers to two rods each and set specific restrictions on catch limits and permitted techniques, so it is worth checking the current regulations from the local fishing association before heading out. What walking routes circle the lake? A loop of roughly two kilometres runs around Lac de Lamoura, and most visitors cover it in under an hour. Much of the path is accessible to visitors with reduced mobility and crosses peat bog terrain, where the marshy vegetation and traces of the Jura plateau's geology are on display. Information panels along the way explain how the peat bogs formed and describe the local flora. What is there to do in winter? In winter, the lake becomes a destination for snowshoe routes that start in the village of Lamoura and lead down to the frozen shoreline. This ties in naturally with the offerings of the nearby Les Rousses resort, a well-known base for cross-country skiing and winter tourism in the Haut-Jura. What else is available on site? A children's playground and a picnic area with barbecue facilities sit right by the water, making the lake an easy target for a family day trip. Free parking makes access straightforward, and the adjoining Forêt du Massacre invites a longer walk for anyone wanting to extend the visit into the woods. FAQ How high up is Lac de Lamoura? The lake sits at 1,156 metres above sea level, making it the highest lake in the Jura department. Is there a supervised beach at the lake? Yes, a supervised swimming area operates during the summer season (July–August) with free access. How long does it take to walk around the lake? The full loop is about 2 km and takes roughly an hour; most of it is accessible for visitors with reduced mobility. Can you fish at Lac de Lamoura? Yes, during the fishing season that runs from the first Saturday of June to the last Sunday of November, limited to two rods per angler. How do you get to Lac de Lamoura? The lake is located next to the village of Lamoura in the Haut-Jura region, close to the Les Rousses ski resort, with free parking available on site.
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Petit Lac d'Oro
Vivario
Petit Lac d'Oro is a small mountain lake in the commune of Vivario, sitting at roughly 1,563 metres in the Monte d'Oro massif, within the Corsican Regional Natural Park. It is the lower, quieter counterpart to the better-known Grand Lac d'Oro, which lies several hundred metres higher, tucked just beneath the summit of Monte d'Oro (2,389 m). Despite sharing a name and a mountainside, the two lakes are distinct places, differing in size, setting and the effort needed to reach them. Where exactly is Petit Lac d'Oro? The lake sits between two secondary peaks of the massif: Punta Marincina (1,770 m) to the west and Punta Renosa (2,008 m) to the east. Together with Monte d'Oro itself, these summits form a rocky, pyramid-like ridge that dominates the skyline above the Vizzavona pass. Administratively, the whole area belongs to the commune of Vivario, one of the gateway villages into Corsica's central mountains. How do you get to Petit Lac d'Oro? The usual starting point is the hamlet of Canaglia, also in the commune of Vivario. Cars are left at a parking area just past the bridge, since there is nowhere to park inside the hamlet itself. The route begins on a forest track, passes a barrier and a gate, and at a fork follows the path signposted toward Mare a Mare, the Onda refuge and Petra Piana. From there, cairns guide walkers through dense undergrowth up to the ruins of the old Giargialiccia sheepfolds. This stretch can be difficult to follow, and the final approach crosses wet, slippery rock slabs that call for some scrambling — this is a route for experienced, well-prepared hikers rather than a casual walk. What will you find at the lake? Petit Lac d'Oro is a small, picturesque pool wedged between slabs of rock. Alders have colonised its shoreline, making the final approach to the water's edge harder than it looks — reaching it takes a bit of determination. In return, visitors get a quiet, rarely crowded corner of the massif, ringed by rocky ridgelines, with a much more intimate feel than the larger and more frequented Grand Lac d'Oro higher up the slope. When is the best time to visit? Like most high-altitude spots in Corsica, the area around Petit Lac d'Oro is at its most accessible from late spring through early autumn, once snow has cleared from the rock ledges and the cairned trail is easy to follow. Outside that window, the terrain can become technically demanding and hazardous, so checking current conditions before setting out is worthwhile. Frequently Asked Questions Are Petit Lac d'Oro and Grand Lac d'Oro the same lake? No. They are two separate lakes in the same Monte d'Oro massif — Petit Lac d'Oro sits lower, at around 1,563 m, while Grand Lac d'Oro lies several hundred metres higher, closer to the summit. Where should you start the hike? The natural starting point is the hamlet of Canaglia in the commune of Vivario, from where the trail runs past the ruined Giargialiccia sheepfolds. Is the trail difficult? Yes. The final stretch to the lake is faint in places and crosses undergrowth and wet, slippery rock, so it suits experienced mountain hikers rather than beginners. Which peak overlooks the lake? Monte d'Oro (2,389 m), flanked by the smaller summits of Punta Marincina and Punta Renosa, which frame both of the d'Oro lakes to the west and east.
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Grand lac d'Oro
Vivario
Grand lac d'Oro sits at roughly 1,970 metres above sea level in the Monte Rotondo massif, within the commune of Vivario in Haute-Corse. Tucked beneath the summit of Monte d'Oro (2,389 m) and inside the Corsica Regional Nature Park, it's a high-altitude tarn that rewards only those willing to commit to a full day of demanding mountain walking to reach it. Where is the lake located? The lake lies in a side valley of the massif, close to the Vizzavona pass, ringed by rocky ridgelines. A short distance below it, at around 1,563 m, sits its smaller sibling, the Petit Lac d'Oro. Both are within the commune of Vivario, a village best known to hikers as a gateway to Monte d'Oro and as a stop along the famous GR20 long-distance trail. How do you get to Grand lac d'Oro? Most hikers start from the hamlet of Canaglia, where cars are left just past the bridge. The route begins on the Mare a Mare Nord trail (Pastricciola variant, marked with orange paint), before joining the GR20 (red-and-white markers) heading toward the Onda refuge below Vizzavona. From there the path steepens and turns increasingly rocky; the final stretch has no formal waymarking at all, relying instead on stone cairns, and crosses wet, slippery rock where hikers need to use their hands in places. How long does the hike take, and how hard is it? The full loop from Canaglia covers around 22 km with roughly 1,400 m of cumulative elevation gain — realistically an eight-hour-plus day out. It's classed as a difficult route, not suited to inexperienced walkers: the rock sections turn treacherous after rain, and the upper part of the trail demands confident route-finding. What is there to see along the way? The trail follows the Manganello valley, where the river carves out clear natural pools that make a good rest stop. Hikers pass the Méli waterfall and stretches of Laricio pine forest, then higher up the ruined stone shepherd huts of Giargialiccia. The last section pushes through maquis scrub and alder-covered rock before opening onto the lake itself, set in a stark alpine bowl. From the summit of Monte d'Oro — reachable via the alpine variant of GR20 stage 9 between the Onda and Vizzavona refuges — the view stretches to Monte Rotondo in the north and Monte Renoso in the south. FAQ Is Grand lac d'Oro directly on the GR20? No. The lake sits on a side approach that meets the GR20 near the Onda refuge; the main trail itself passes nearby via the Agnone valley or, for experienced hikers, the alpine variant over the Monte d'Oro summit. When is the best time to hike here? Summer, from June to September, once the snow has cleared from the higher ground and the rock is dry. The final rocky stretch becomes genuinely dangerous when wet. Is this hike suitable for beginners? No. Between the distance, the elevation gain, and the scrambling required near the lake, it calls for good fitness and prior experience on rough mountain terrain. How high up is the lake itself? Grand lac d'Oro sits at about 1,970 m, with its smaller neighbour, Petit Lac d'Oro, lower down at around 1,563 m.
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