Nature — France — NextOnTrip

Lac de Bassias

Beaucens

Lac de Bassias is a small high-mountain lake sitting at roughly 2,070 metres of altitude in the commune of Beaucens, in the Hautes-Pyrénées department. Locally it also goes by the name Lac de Couy Séque. Tucked into a rocky, grassy hollow on the north face of Soum de Lascours (2,485 m), it draws hikers looking for a genuine high-altitude Pyrenean lake away from the crowds. Where exactly is the lake? The lake lies right on the ridge that separates the Gave valleys, which drain toward Argelès-Gazost, from the Adour valley around Campan. That position means it can be approached from either side of the massif: from the Hautacam side within Beaucens, or from the Lesponne valley. Several other small lakes dot the same high pastureland nearby, making this stretch of ridge a favourite for lake-hopping hikes in the area. How do you get there? The most common approach starts from the parking area near Col de Moulata on the Hautacam side, climbing past Hourquette d'Ouscouaou onto a long, scenic ridge traverse. An alternative route begins at Chiroulet, in the Lesponne valley. Either way, the climb takes roughly three hours or a bit more. The final stretch down to the lake is steep and exposed in places, so this outing suits experienced mountain hikers rather than casual walkers — the path itself isn't waymarked, and while it's easy enough to follow in clear weather, fog can make it disorienting; turning back is the sensible call if visibility drops. Dogs are welcome but must stay on a leash. What does the lake itself look like? Lac de Bassias covers about 2.5 hectares and reaches a maximum depth of 10 metres. Scree slopes (éboulis) tumbling down from the surrounding terrain give it a stark, high-mountain feel. It has no permanent surface outflow — water only spills over a rock sill on the northeast side when levels run high, otherwise seeping away underground. Brown trout, rainbow trout and minnow all live in its waters, which makes it a destination for anglers as well as hikers. Even in July, patches of ice can still linger in shaded corners near the shore. When is the best time to hike here? The route is generally walkable from early June through to early November; outside that window, snow can still cover both the approach and the final descent to the lake. Given the altitude and the exposed nature of the last section, it's worth checking current snow conditions before setting out, particularly in early summer or late autumn. FAQ Can you swim in Lac de Bassias? It's a protected high-mountain lake, and swimming isn't recommended — the water stays cold and the surrounding environment is fragile. Is this hike suitable for beginners? Not really. The steep, exposed final stretch and the lack of waymarking mean it's better suited to hikers with mountain experience. Where's the best starting point? Two main options: the Col de Moulata parking area on the Hautacam side (within Beaucens), or Chiroulet in the Lesponne valley. Both require around three hours of climbing. Is fishing allowed? The lake holds brown trout, rainbow trout and minnow, though as with most Pyrenean lakes, local fishing regulations apply.

Lac de Pozzolo

Corte

Lac de Pozzolo is a small mountain lake in the commune of Corte, in Haute-Corse, sitting at roughly 2,348 metres above sea level. It rests in a glacial cirque at the foot of Monte Rotondo (2,622 m), Corsica's second-highest peak. Unlike the busier lakes closer to town, Pozzolo sits in a quieter corner of the Rotondo massif, reached only after a long, committing climb. Where exactly is the lake? Pozzolo lies within the Rotondo massif, the mountain range rising above Corte, Corsica's historic mountain capital. The area is dotted with glacial lakes, so it's easy to confuse Pozzolo with better-known neighbours such as Melo, Capitello, or Bellebone. What sets Pozzolo apart is its more remote setting and lighter foot traffic — the approach follows a different valley from the well-trodden route to Melo and Capitello. What does the surrounding landscape look like? The lake occupies the floor of a rocky glacial cirque, ringed by the bare ridgelines of the Rotondo massif. Around the water itself, the scenery is stark high-mountain terrain: granite, scree, and sparse alpine vegetation. Lower down, the approach valley tells a different story, running through forests of Corsican pine (pino laricio) and beech, past waterfalls and the stone ruins of old shepherds' huts known as bergeries. How do you get to Lac de Pozzolo? The usual starting point sits in the Restonica valley, a few hundred metres downstream from where the Rivisecco stream meets the Restonica river. From there, the path crosses the Restonica on a footbridge and climbs toward the bergeries de Rivisecco, a cluster of shepherds' huts set in a shaded, pine-covered stretch of the valley. Beyond the huts, the trail steepens and turns rockier, eventually breaking above the treeline before reaching the cirque where the lake sits. Who is this hike suited for? This is a long, demanding mountain approach, best suited to hikers in good physical condition with some experience on rough alpine terrain. The elevation gain, combined with the steep, rocky final stretch, rules it out as a casual outing. In return, walkers reach a secluded glacial lake and a view of the Rotondo massif that most visitors — who stop at the lower lakes in the valley — never see. Frequently asked questions How high up is Lac de Pozzolo? The lake sits at roughly 2,348 metres above sea level, within the Monte Rotondo massif. Is it in the same area as Lac de Melo and Lac de Capitello? All of them lie within the commune of Corte and the wider Restonica/Rotondo area, but Pozzolo is reached via a different, quieter route than the popular trail to Melo and Capitello. Where does the trail to the lake start? The trailhead is in the Restonica valley, near where the Rivisecco stream joins the Restonica river. From there, the route crosses a footbridge and passes the bergeries de Rivisecco before climbing toward the higher ground of the massif. Is the hike suitable for beginners? No — it demands good physical fitness and some mountain hiking experience, due to the length of the climb and the steep, rocky final approach near the lake. What can you see along the way? The trail passes through Corsican pine and beech forest, waterfalls, and abandoned shepherds' huts before climbing above the treeline into the rocky cirque that holds the lake.

Lac d'Isaby

Beaucens

Lac d'Isaby is a glacial mountain lake in the commune of Beaucens, in the Hautes-Pyrénées department of southwestern France. Sitting at roughly 1,589 metres above sea level, it covers an area of about 6.3 hectares and lies on the boundary between the Pic du Midi de Bigorre massif to the south and the Montaigu massif to the north. Beaucens is home to more than one small lake, including the separate and unrelated Lac d'Ourrec nearby, so it's worth keeping the names straight when planning a visit. How did the lake form? The basin was carved out by glacial and fluvioglacial erosion over thousands of years during the Pleistocene, when a cooling climate triggered the formation of glaciers across the Pyrenees. That long process left behind the lake's distinctive crescent shape, framed on all sides by high ridgelines. How do you get to Lac d'Isaby? The classic approach starts at the top of the Hautacam ski station, from which the trail heads downhill and partly follows the Isaby stream before reaching the lake. The round trip covers around 7 kilometres, is rated as a moderate walk, and typically takes two to three hours depending on pace and photo stops. Elevation change is modest, which makes the route manageable for families with children. To reach Hautacam, drivers follow the departmental road through Argelès-Gazost; the trip from Lourdes takes about 50 minutes by car. The best window for a visit runs from March through October, since the trail can stay snow-covered outside that period. What will you see along the way? The surroundings are classic high-mountain pasture: wide grazing meadows where cattle and sheep spend the summer, dotted with patches of wild blueberry bushes. Kestrels can often be spotted circling above the slopes, while the lake itself holds trout and small minnow-like fish. The payoff for hikers is a 360-degree panorama of the surrounding peaks, which is a big part of why this walk is one of the more popular outings around Argelès-Gazost. A local legend The lake is tied to an Occitan folk tale called Era Sèrp d'Isavit, about a giant serpent said to have once lived on the peaks above Argelès-Gazost, devouring cattle, sheep, dogs, and even shepherds. The story is still mentioned in local accounts of the area as a piece of regional folklore that accompanies the hike. Rules to know before you go The lake sits within the Pyrenees National Park, so a few conservation rules apply. Dogs are welcome but must stay on a leash. Swimming is discouraged, since it can disturb the lake's fragile aquatic ecosystem. Bivouac camping is tolerated only between 7 p.m. and 9 a.m., letting hikers spend a night under the stars without disrupting daytime park life. Frequently asked questions Where exactly is Lac d'Isaby located? In the commune of Beaucens, Hautes-Pyrénées, between the Pic du Midi de Bigorre and Montaigu massifs. How long does the hike take? The standard round trip from the Hautacam ski station takes roughly two to three hours. Is the trail suitable for families? Yes, it's generally rated moderate and manageable for families, though it's worth checking weather and trail conditions beforehand. Can you swim in the lake? It's not recommended, as swimming can disturb the lake's delicate ecosystem. Is camping allowed at the lake? Bivouacking is tolerated, but only between 7 p.m. and 9 a.m., in line with Pyrenees National Park rules.

Lac d'Ourrec

Beaucens

Lac d'Ourrec is a small mountain lake sitting on a quiet shelf in the Lesponne valley, part of the commune of Beaucens in the Hautes-Pyrénées department, in the Occitanie region of France. At roughly 1,667 metres above sea level, on the northern flank of the Lascours massif within the wider Pic du Midi de Bigorre range, it's the kind of lake you earn rather than stumble upon — reached only on foot, after a walk through forest and pasture. Where exactly is it? The lake sits in a natural amphitheatre formed by three peaks: Soum de Lascours (2,490 m), Pène de Lounqué (2,275 m), and Pic du Montaigu (2,339 m). That backdrop of bare granite ridges above turquoise-tinted water is what draws hikers here in the first place. The lake itself is modest in scale — around 1.3 hectares of surface area and a maximum depth of about 3 metres — closer to a mountain tarn than a large reservoir. How do you get there? Two established routes lead to Lac d'Ourrec, and they differ considerably in length and effort. From the Chiroulet car park The shorter and easier approach starts at the Chiroulet parking area in the Lesponne valley. The path follows the Adour de Lesponne stream, climbs through forest, and passes the Ouscouaou waterfall before the lake comes into view. The round trip takes about two hours and is generally rated easy, making it a realistic option for families. From Hautacam (Col de Tramassel) The longer route begins at Col de Tramassel, near the Hautacam ski area. It's a loop of about 12.5 km with roughly 474 m of elevation gain, and hikers should plan on close to four and a half hours. This version is rated moderate — manageable for anyone with reasonable hiking fitness, but a step up from the Chiroulet approach. Is it worth pairing with another lake? Lac Bleu lies nearby, and many hikers link the two into a single "two lakes" loop. Doing so means covering two distinct mountain-lake landscapes in one outing, without doubling back along the same path to the start. When should you go? The hiking season here runs roughly from late April to mid-November, with May through October the busiest and most reliable window. The route is not recommended in winter or whenever snow lingers on the surrounding ridges, and guides advise against attempting it in fog, since the terrain can be hard to read without clear visibility. Is it grazing land? Yes. The slopes around the lake are used for summer grazing, so dogs are welcome but must stay on a leash while livestock is present. Frequently asked questions How high up is Lac d'Ourrec? The lake sits at an altitude of approximately 1,667 metres. How long does the hike take? It depends on the route: about 2 hours round trip from the Chiroulet car park, or closer to 4.5 hours for the loop starting at Hautacam. Is the trail suitable for children? The Chiroulet approach is rated easy and is commonly recommended for families; the longer Hautacam loop is more demanding. Can I bring a dog? Yes, but on a leash — the area is used for livestock grazing in summer. What's the best time of year to visit? Between May and October, avoiding winter conditions and periods when snow is still present on the trail.

Lac Besson

L'Alpe d'Huez

Lac Besson is a small mountain lake sitting at roughly 2,070 metres on the Petites Rousses plateau, within the Grandes Rousses massif above L'Alpe d'Huez in the Isère department, France. Covering about 4.35 hectares with an average depth near 20 metres, it is the best-known of a cluster of lakes on this high plateau and a favourite easy outing for visitors staying in the resort. Where is Lac Besson exactly? The lake lies around 3 kilometres from the centre of the L'Alpe d'Huez ski resort (1,860 m), close to the Col de Poutran. From its shores the view opens onto the Oisans range, and on clear days the Belledonne, Taillefer and Vercors massifs are visible in the distance. How do you get there? Car access to the parking area right by the lake (about 2,100 m) can be restricted during the summer season, so most visitors rely on the free shuttle bus that runs from early morning until late evening, or take the chairlift/cable car that operates during the day. From the upper lift station, only a short, easy walk remains to reach the water. What is there to do around the lake? Lac Besson is the natural starting point for the "Tour des Lacs," a walking loop that links several lakes on the plateau: Lac Noir, Lac Faucille and Lac Carrelet. The full loop covers about 4.5 kilometres and takes roughly 1 hour 40 minutes at an easy pace, making it suitable for families and casual walkers alike. Lac Noir, about a 15-minute walk from Lac Besson, is particularly known for its mirror-like surface, which reflects the sky and surrounding peaks. When is the best time to visit? The network of paths around the lakes is open and easiest to walk between 1 May and 31 October, once snow has cleared from the trails and pastures. In winter the area takes on a different character, and the route around Lac Besson becomes a popular destination for snowshoe outings across a snow-covered landscape. Can you swim in Lac Besson? No. Swimming is not permitted in the lake. Lac Besson functions as a scenic stop and rest point along the trail rather than a swimming spot. FAQ How high up is Lac Besson? The lake sits at an altitude of about 2,070 metres on the Petites Rousses plateau. How long does the walk around the lake take? The full loop connecting Lac Besson with the neighbouring Lac Noir, Lac Faucille and Lac Carrelet is about 4.5 kilometres and takes around 1 hour 40 minutes of easy walking. How do you reach the lake without a car? A free shuttle bus runs from L'Alpe d'Huez, and a chairlift or cable car provides an alternative during the summer season. Is swimming allowed at Lac Besson? No, swimming is prohibited across the whole lake. What else is worth seeing nearby? Combine the visit with a walk to the neighbouring Lac Noir, Lac Faucille and Lac Carrelet, and enjoy the panoramic views over the Oisans, Belledonne, Taillefer and Vercors ranges.

Lac d'Occhi Neri

Corscia

Lac d'Occhi Neri is a high-altitude glacial lake in the commune of Corscia, in the Niolo region of Haute-Corse, in the heart of Corsica's mountains. Sitting at roughly 2,165 metres, it lies northeast of Monte Cinto, the island's highest peak, inside a glacial cirque overshadowed by Capu a u Verdatu (2,583 m). Its Corsican name, Lavu à l'Ochji Neri, translates literally as "lake of the black eyes" — a fitting description for a dark, deep pool set against pale granite walls. Where exactly is the lake, and what does its name mean? Occhi Neri belongs to the so-called Lancone lakes, a cluster of three mountain tarns strung along the same ridge line: Lac de Ghjarghje Rosse (2,175 m) sits just above it, while the smaller Lac de Lancone Sottano (2,155 m) lies just below. Its alternative Corsican name, Lavu di Lancone Mezzanu, reflects its middle position in that three-lake chain. Water draining from Occhi Neri feeds the Ruda stream, itself a tributary of the Golo, Corsica's principal river, which runs from the Cinto massif down toward the island's east coast. How do you get to Lac d'Occhi Neri? The hike begins in the village of Corscia, right behind the church, where a clearly marked path climbs into the Ruda valley. It passes two mountain sheepfolds, Caracuto and then Urcula — beyond Urcula the waymarking thins out and relies mostly on cairns, so careful route-finding matters. The trail continues across the open, exposed slopes of the Verdatu and Bianco massifs before reaching Ghjarghje Rosse and Occhi Neri; from there, crossing a rocky ridge, hikers can push on to the nearby Lac Maggiore (Lac Maiò), often rated one of the finest lakes in this part of the range. The full round trip covers roughly 19 km with about 1,500 m of elevation gain and typically takes 9 to 10 hours — a demanding full-day mountain outing, not a casual walk. What should you know before setting out? Given the altitude and terrain — open granite slopes, little shade, and stretches with no defined path — summer is by far the best season, once snow has cleared from the higher ground. Carry plenty of water, since reliable sources along the way are scarce, and bring a map or GPS plus sturdy hiking boots. The Niolo region is traditionally sheep-farming country, and active bergeries (mountain sheepfolds) can still be encountered along the route, especially in summer. Frequently asked questions How high up is Lac d'Occhi Neri? The lake sits at about 2,165 metres, in a glacial cirque below the summit of Capu a u Verdatu. What does the name Occhi Neri mean? It's Corsican for "black eyes," referring to the dark colour of the water set against the surrounding rock. Which village is the starting point for the hike? The trail starts in Corscia, in the Niolo region, right by the village church. Is this a difficult hike? Yes — it's a long, full-day mountain trek (around 19 km, roughly 1,500 m of elevation gain) that demands good fitness and solid route-finding skills, particularly past the Urcula sheepfold. Are there other lakes nearby? Yes. Occhi Neri neighbours Lac de Ghjarghje Rosse and Lac de Lancone Sottano — together forming the Lancone lakes — and, beyond a rocky ridge, the well-known Lac Maggiore.

Étang d'Ayès

Bethmale

Étang d'Ayès is a mountain lake in the commune of Bethmale, in the Couserans area of Ariège, in the French Pyrenees. Sitting at roughly 1,694 metres above sea level, it covers a modest surface area of about 1.7 hectares. It's one of several small lakes scattered across the upper reaches of the Bethmale valley, not far from the better-known Lac de Bethmale lower down. Where exactly is the lake? Ayès sits at the mouth of the Cirque de Campuls, a small glacial cirque ringed by steep slopes. The lake is fed by the Campuls stream, which runs down from the higher ground of the cirque. This natural amphitheatre has long served a practical purpose for local herders: it was here that sheep and cattle were gathered each year during transhumance, before being driven further up to the summer pastures. Traces of that pastoral tradition are still visible across the valley. How do you get to Étang d'Ayès? The most straightforward approach starts near Lac de Bethmale. From Castillon-en-Couserans, take the D4 towards Sentein, then turn onto the D17 at Bordes-sur-Lez, which runs alongside Lac de Bethmale. From there, a forest track climbs towards Mont Ner; after roughly 20 minutes of driving you reach a second car park, closed off by a barrier, where the walking route into the Cirque de Campuls begins. The path starts out wide and grassy, then narrows and climbs in switchbacks to a junction. Turning right there, a gentler climb leads up to the ridge, where the trail meets the GR10. Following the GR10 to the right brings you straight to the lake. A second, considerably tougher option starts at Col de la Core: a round trip of around 10 kilometres with roughly 580-590 metres of elevation gain, typically taking four to four and a half hours. What should you know before setting out? The access route through the Cirque de Campuls is typically closed between 1 November and 1 June, so it's worth checking conditions before planning a trip outside the summer months. It's also worth knowing that swimming is banned in every lake within the commune of Bethmale - Ayès included, alongside its neighbours: Bethmale, Eychelle, Milouga, Arouech and Cruzous. The rule is meant to protect water quality and the fragile ecosystems of these high-altitude lakes. Are there other lakes nearby? Yes - the Bethmale valley holds several similar lakes at different altitudes, including Étang d'Eychelle, which lies within the same commune but in a different part of the terrain and is reached by a separate route. It's a distinct lake, so if you're planning a hike, it's worth double-checking which one you're actually heading for - routes are sometimes combined into a longer loop, but they lead to different destinations. Frequently asked questions How high up is Étang d'Ayès? The lake sits at an altitude of around 1,694 metres. How big is the lake? It covers a surface area of about 1.7 hectares. Can you swim there? No - swimming is prohibited in all the lakes of the Bethmale commune, including Ayès. When is the trail through the Cirque de Campuls closed? The access route is typically closed from 1 November to 1 June. Is this the same lake as Étang d'Eychelle? No - they are two separate lakes within the same commune of Bethmale, located in different parts of the valley.

Grand lac de Laffrey

Cholonge

Grand Lac de Laffrey is the largest lake in a small cluster of natural lakes scattered across the Plateau de la Matheysine, a high plateau in the Dauphiné Alps of the Isère department in southeastern France. It sits at 911 metres above sea level, mostly within the commune of Laffrey, with its southern shore reaching into neighbouring Cholonge. The lake lies directly alongside the road that climbs from Grenoble onto the plateau, making it one of the first landmarks travellers notice as the road opens up above the Grenoble valley. How big is the lake, and how did it form? Grand Lac de Laffrey is a glacial lake, carved out during the last ice age and left behind as the ice retreated from the plateau. It covers roughly 120 hectares, stretching about 3 km in length with a width of around 500 metres, and reaches depths of up to 39 metres. That combination of size and depth is enough to rank it among the eight largest natural lakes in France — a notable figure for a lake tucked away on a mountain plateau rather than in a lowland valley. What is there to do at the lake? The water stays relatively calm and sheltered, which suits sailing and light watersports well. A sailing centre on the southern shore, in Cholonge, runs courses and outings on dinghies and catamarans, while the beach on the northern side rents out pedal boats and kayaks for a more casual afternoon on the water. Rowing boats drifting across the surface are a familiar sight here throughout the summer season. Anglers also come for the lake. It is classified as second-category fishing water, and night fishing is permitted by reservation between 1 April and 31 October. The lake holds whitefish (known locally as féra or corégone), lake trout, Arctic char, and among predatory species pike and perch, alongside carp, tench and roach. Why is Laffrey linked to Napoleon? The lake's best-known story dates to 7 March 1815. Returning from exile on Elba, Napoleon marched north toward Grenoble and found royalist troops waiting on the meadow overlooking the lake, sent to stop his advance. He is said to have walked forward unarmed and addressed the soldiers directly, telling them he was their emperor and that if any of them wished to kill their commander, here he stood. The troops sided with him rather than opening fire, and the meadow has been known ever since as the Prairie de la Rencontre — the Meadow of the Encounter. An imposing equestrian statue of Napoleon now stands above the grand lac, marking the spot and visible to anyone driving along the shoreline. It is worth noting that Grand Lac de Laffrey is one of several lakes on this plateau — smaller lakes belonging to the same chain lie nearby — but it is the largest and deepest of the group by a clear margin. FAQ Where exactly is Grand Lac de Laffrey located? On the Plateau de la Matheysine in the Dauphiné Alps, in the Isère department, within the commune of Laffrey, bordering Cholonge to the south. Can you sail or kayak on the lake? Yes. A sailing base at Cholonge on the south shore offers dinghy and catamaran outings, and the north beach rents kayaks and pedal boats. Is the lake good for fishing? Yes, it is a second-category water holding whitefish, lake trout, Arctic char, pike, perch, carp, tench and roach; night fishing requires advance reservation and runs from April through October. What is the Napoleon connection? The meadow above the lake, the Prairie de la Rencontre, is where Napoleon won over troops sent to block his return from Elba in March 1815. An equestrian statue overlooking the lake commemorates the event. Is this the biggest lake in the Matheysine chain? Yes, Grand Lac de Laffrey is the largest and deepest of the lakes on this plateau.

Lac de Pierre-Châtel

Pierre-Châtel

Lac de Pierre-Châtel is a small lake in the Isère department, in the Auvergne-Rhône-Alpes region of France, lying between the communes of Pierre-Châtel and Saint-Théoffrey. It sits in the heart of the Matheysine, a highland area south of Grenoble known for a chain of glacially formed lakes scattered among pastures and woodland. The lake's coordinates are roughly 44.9736°N, 5.7778°E. Where exactly is the lake located? The lake straddles the boundary of two small communes, Pierre-Châtel and Saint-Théoffrey. The surrounding plateau sits above 900 metres in altitude, and the Matheysine has long served as a natural passage between the Drac valley below and the higher Dauphiné uplands. Access is via local roads connecting the two villages, away from the busier tourist routes found in the Alpine resorts further east. How large is the lake and how did it form? The lake covers a surface area of about 1.4 square kilometres. Like most of the small lakes scattered across this part of the Matheysine, its basin owes its shape to the retreat of the ancient Drac glacier, which left behind morainic deposits that dammed water in natural depressions of the terrain. The result today is a chain of several lakes of similar glacial origin, strung along the same geological axis across the plateau. What can visitors do at Lac de Pierre-Châtel? Unlike the region's more popular bathing lakes, Pierre-Châtel is primarily known as a fishing water. Its banks, largely under private management, offer designated fishing spots open both by day and at night, and anglers can find carp, pike, perch and trout in its waters. Because of this fishing-focused status, swimming and boating — including windsurfing and pedal boats — are not permitted here. The grassy shoreline and surrounding paths are, however, well suited to quiet walks and birdwatching, since the wetland fringes typical of the Matheysine attract a variety of waterfowl. How does it fit into the Matheysine lake chain? Lac de Pierre-Châtel is one link in the distinctive chain of lakes that defines the Matheysine plateau, which also includes Lac de Petichet in the commune of Saint-Théoffrey and the larger Grand lac de Laffrey further south. All formed under similar post-glacial conditions and sit close to one another on the same upland, yet each has developed its own character and use. Pierre-Châtel stands out for its fishing-only profile, in contrast to neighbouring lakes that are more geared toward swimming and water sports. Frequently asked questions Can you swim at Lac de Pierre-Châtel? No. The lake is reserved for fishing, and swimming as well as water sports are prohibited there. How big is the lake? Its surface area is approximately 1.4 square kilometres. What fish can be caught in the lake? Anglers mainly target carp, pike, perch and trout, fishing from designated spots along the privately managed banks. Is the lake close to other Matheysine lakes? Yes. Pierre-Châtel lies near other lakes of the same region, including Lac de Petichet and Grand lac de Laffrey, together forming the well-known Matheysine chain of glacial lakes. How do you get to the lake? The easiest approach is via local roads linking Pierre-Châtel and Saint-Théoffrey, on the Matheysine plateau south of Grenoble.

Estany de Roset

Angoustrine-Villeneuve-des-Escaldes

Estany de Roset is a small glacial lake in the French Eastern Pyrenees, administratively part of the commune of Angoustrine-Villeneuve-des-Escaldes in the Pyrénées-Orientales department. The Catalan word "estany" simply means lake, and the name also turns up in French sources as Rouzet or Rosset, reflecting the bilingual character of the Cerdagne (Cerdanya) region. Sitting at roughly 2,247 metres above sea level and covering about 3 hectares, it is a modest but genuine example of the small alpine lakes carved out by glaciers across this stretch of the Pyrenees. Where exactly is the lake? Estany de Roset lies in the upper Carol valley, in a stark, rocky high-mountain landscape typical of upper Cerdagne. It sits just above the much larger Étang de Lanoux, and the surrounding skyline includes Puig de Lanós (2,660 m), Puig Carlit (2,921 m, the highest summit in the area) and Puig Castell Isard. Although the lake falls within the administrative boundaries of Angoustrine-Villeneuve-des-Escaldes, it is physically closer to the village of Porté-Puymorens — a common arrangement in this part of the Pyrenees, where communal territories often stretch far into distant highland pastures. How do you get there? The usual starting point is along the road to Puymorens, near Porté-Puymorens (1,684 m). From there, hikers follow the "route des lacs" for about 3.6 km to a parking area near the small Passet pond. A footpath continues from the car park to the lake itself, and reaching it typically takes somewhere between two and a half and three hours on foot, depending on fitness and trail conditions. The route gains significant elevation, so proper hiking boots, enough water, and a check of the weather forecast are essential — conditions above 2,000 metres in the Pyrenees can shift quickly even in summer. What is there to do at the lake? Estany de Roset mainly draws hikers looking for quiet, away from the busier trails of Cerdagne, along with anglers — the lake holds brown trout (fario). The surroundings are rugged and largely mineral: rock, scree, and sparse high-altitude vegetation above the tree line. There is no tourist infrastructure at the site, which suits visitors seeking a genuine wilderness experience but also means self-sufficiency and hiking experience are necessary. FAQ Can you swim in Estany de Roset? Nothing in the available sources points to an organised swimming area — this is a small, high-altitude lake without beach facilities, visited mainly by hikers and anglers. How long does it take to reach the lake? From the parking area near the Puymorens road, count on roughly two and a half to three hours of walking one way. Are there fish in the lake? Yes, Estany de Roset holds brown trout (fario), making it a destination for anglers exploring the Cerdagne area. How was the lake formed? Estany de Roset is a glacial lake — its basin was carved out by a glacier that retreated from this part of the Pyrenees after the last ice age. Is it close to other lakes? Yes, the much larger Étang de Lanoux lies directly below it, one of the best-known high-altitude lakes in this part of the Pyrenees.

Lac de Petichet

Les Théneaux

Lac de Petichet sits at roughly 930 metres above sea level on the Matheysine plateau in the Isère department of France. The lake lies just 400 metres south of the Grand lac de Laffrey and belongs to a small chain of glacial lakes that gave this part of the region its nickname, the "land of lakes." Covering about 80 hectares and reaching a maximum depth of 17 metres, Petichet ranks among the larger lakes of Matheysine, even if it stays firmly in the shadow of its better-known neighbour, Laffrey. Where exactly is the lake? Petichet lies within the commune of Saint-Théoffrey. Some local references and databases also list the nearby place name Les Théneaux, a small settlement within the same commune, close to the shoreline. For visitors, though, the practical reference points are Saint-Théoffrey itself and the Grand lac de Laffrey, which sits only a few hundred metres to the north. What can visitors do at Lac de Petichet? An unsupervised beach runs along the lake, free to access along with nearby parking. The shoreline is made up of broad pebble and gravel beaches, and the water stays notably calm because all boating and other nautical activities are banned. That single rule sets Petichet apart from Laffrey, where motorised water sports are allowed, and gives Petichet a quieter, more low-key feel. On site there is a bar-restaurant, a children's play area, and picnic spots. Fishing is possible but is private and requires the appropriate permit. What rules apply on site? Besides the ban on boats and water sports, the lake also prohibits open fires and barbecues, inflatable mattresses, and paddleboards, and dogs are not allowed on the supervised section of the beach. These restrictions keep the water clean and the atmosphere calm, which is why Petichet tends to draw families and people looking for quiet rather than watersports enthusiasts. When is the best time to visit? The seasonal facilities — the bar, the play area, general upkeep of the beach — operate mainly from mid-June to mid-September, when the lakes of Matheysine are warm enough for swimming. Outside that window the lake and its surroundings remain open for walks and fishing, just without the summer amenities running. What else is worth knowing about the area? Matheysine is a plateau in Isère dotted with several glacial lakes, including Petichet, Laffrey, Lac Mort, and Lac de Pierre-Châtel. Laffrey itself has a notable place in French history: nearby is where, in March 1815, Napoleon famously confronted royalist troops during his return from exile on Elba. Petichet, despite sitting right next to this historic spot, has kept a much simpler role as a local swimming and picnic destination. Frequently asked questions Can you swim at Lac de Petichet? Yes. The beach is open to everyone and free to use, though unsupervised — swimming is at your own risk. Are boats or kayaks allowed? No. All nautical activities are banned on the lake, which is one of the main differences from neighbouring Laffrey. Is there anywhere to eat nearby? Yes, a bar-restaurant operates at the beach during the season, and there are picnic spots as well. Is the lake easy to reach from Saint-Théoffrey? Yes. Petichet lies within the commune of Saint-Théoffrey, with direct access from the village. How big is the lake? It covers about 80 hectares, reaches a depth of up to 17 metres, and sits at around 930 metres of altitude.

Lac de Barbazan

Barbazan

Lac de Barbazan is a small lake in the commune of Barbazan, in the Haute-Garonne department of southern France, set at the foot of the Pyrenees. Sitting at roughly 450 metres above sea level, it is something of a geological curiosity: it is classified as a glacial lake, a type of formation rarely found at such a moderate altitude in this part of France. The water's colour shifts through the day with the light, and the lake is framed by the gentle green hills of the Comminges area. How did the lake form? Local tradition ties the lake's origin to a legend involving Saint Peter and Jesus, said to have travelled through the area disguised as poor wayfarers. The villagers turned them away empty-handed, and only one modest household offered them hospitality. According to the story, this rejection brought divine punishment: the ground gave way and water swallowed the village, leaving the lake in its place. Guides in the area still tell the tale, even though the scientific explanation points to glacial processes dating back thousands of years. What can visitors do at the lake? Lac de Barbazan is mainly a spot for family walks and quiet outdoor time. A path runs around the water, and the area is dog-friendly. Swimming is not allowed here, so visitors looking to bathe should head to the supervised lake beach at Montréjeau, about 7 kilometres away. The lake is, however, a well-regarded fishing spot. Anglers need a valid fishing permit, and the lake falls under first-category fishing regulations. The season generally runs from mid-March to late September, with short closures around scheduled restocking dates. Fishing is done from the bank only — boats and pontoon fishing are not permitted. Barbazan, a historic spa town Barbazan itself has long been known as a spa town. Local springs, rich in sulphate, calcium and magnesium, fed a thermal establishment that took its current form in the early 20th century under Louis Daumas, who had owned the spa since 1901. The waters were used to treat urinary, liver and intestinal ailments. The resort reached its peak between the two world wars, when it became a favoured retreat for French colonial officials by the late 1920s, drawn by both the climate and the cure. The thermal park, covering nearly three hectares, still keeps its three avenues lined with plane trees, a visible trace of the town's spa-era prosperity. Thermal activity declined over the following decades, and the spa finally closed in the late 1990s. The lake, bordering the old spa park, remains one of the most recognisable features of the Barbazan landscape today. FAQ Can you swim in Lac de Barbazan? No, swimming is prohibited. The nearest supervised swimming spot is the lake beach at Montréjeau, about 7 kilometres away. Is fishing allowed? Yes, with a valid fishing licence. The lake is managed under first-category fishing rules, and the season generally runs from mid-March to late September. How did the lake form? It is of glacial origin, unusual for a lake at only about 450 metres altitude. Local legend instead tells of a village punished and submerged after turning away two disguised holy travellers. Can I walk around the lake with a dog? Yes, the path around the lake is open to walkers and dogs are welcome. What is the connection between the lake and Barbazan's thermal baths? The lake sits next to the former spa park of Barbazan, a town known for its thermal establishment that operated from the early 1900s until its closure in the late 1990s.

Lac d'Espingo

Oô

Lac d'Espingo is a mountain lake sitting at 1,882 metres above sea level in the commune of Oô, in the Haute-Garonne department, deep in the French Pyrenees. Compact in size, covering only about 0.076 km², it lies in the Oô valley along one of the Luchonnais area's best-known hiking routes, tucked between the well-visited Lac d'Oô below and the higher Lac de Saoussat above. Where exactly is the lake? The lake sits at roughly 42.7286 N, 0.4956 E. Espingo occupies a middle position in the valley: higher than Lac d'Oô, but well below Lac du Portillon (2,580 m), which lies much further up the same valley system. These are two separate lakes reached by different stretches of trail, so it's worth not confusing them despite belonging to the same hiking corridor. How do you get to Lac d'Espingo? Most visitors start from Granges d'Astau, the end of the access road from Luchon via Castillon-de-Larboust, where the last car park sits. From there, a path overlapping with the GR10 long-distance trail climbs first to Lac d'Oô — an easy, largely shaded stretch suitable for families. The next section, a steep climb alongside the waterfall that feeds Lac d'Oô, is noticeably tougher and more exposed to the sun, so sturdy boots and enough water for a full day out are essential. Covering the round trip typically takes several hours and involves a substantial amount of elevation gain. What facilities are near the lake? On the shore of Lac d'Espingo stands a mountain refuge built in 1925, offering meals and overnight beds to hikers continuing further into the mountains, whether toward Lac de Saoussat or onward to Lac du Portillon near the Spanish border. The refuge functions as a natural rest stop and waypoint for anyone tackling longer routes through the Central Pyrenees. Does the lake have any scientific or historical significance? The area around Lac d'Espingo has attracted the attention of naturalists for close to two centuries. In 1836, the Scottish physicist and geologist James David Forbes, while conducting fieldwork near Bagnères-de-Luchon, documented an unusual arrangement of mica within the local granite, a formation he described using the term "mica palmier" — a distinctive crystalline pattern found in rock of this range. More than a century later, in 1940, the French botanist and geographer Henri Gaussen recorded that the lake sits at an altitude close to 2,000 metres and that the surrounding area receives roughly 1.5 metres of precipitation annually, a detail that helps explain the harsh, damp high-mountain climate typical of this part of the Pyrenees. What is the surrounding landscape like? The setting around Lac d'Espingo is classic Central Pyrenean high-mountain terrain: rocky ridgelines, steep slopes covered in alpine grasses, and patches of dwarf mountain pine lower down the valley. Heavy rainfall combined with snowmelt feeds numerous streams and waterfalls throughout the Oô valley, making it one of the wetter, water-rich corners of Haute-Garonne. Frequently asked questions Can you drive right up to the lake? No. The road ends at the car park in Granges d'Astau; reaching Lac d'Espingo requires walking a mountain trail from there. How long does the hike take? Depending on fitness and pace, walking from Granges d'Astau via Lac d'Oô usually takes around two to three hours one way, mostly because of the steep section above the waterfall. Is there somewhere to stay overnight near the lake? Yes, a mountain refuge dating from 1925 stands on the shore, open seasonally and offering meals and dormitory beds. Is the route suitable for children? The stretch up to Lac d'Oô is easy and family-friendly, but the climb onward to Lac d'Espingo is steeper and calls for reasonable fitness and proper footwear.

Lac d'Embarrat inférieur

Estaing

Lac d'Embarrat inférieur is a small glacial lake straddling the boundary between the Estaing and Cauterets valleys, deep inside the Pyrenees National Park in the Hautes-Pyrénées department. Administratively shared between the communes of Estaing and Cauterets, it is best known to hikers as one of the stops on the way into a high mountain cirque where rock, water, and summer pastures come together in a landscape typical of the French Pyrenees. Where exactly is the lake? The lake sits at roughly 2,078 metres above sea level, in a small glacial cirque suspended between the Estaing valley and the Marcadau valley on the Cauterets side. It is enclosed by the Cardinquère peak (2,509 m) and the Aiguilles de Castet Abarca (2,568 m), which wall it in on almost every side and give the spot its closed-in, sheltered feel — a feature that is actually baked into its name. How big is the lake? Don't expect a vast body of water: Lac d'Embarrat inférieur covers around 1.8 hectares and reaches a maximum depth of about 4 metres. Like most Pyrenean mountain lakes, it is fed by snowmelt and runoff from the surrounding ridges, and its water level varies noticeably with the season. Where does the name "Embarrat" come from? The name comes from Occitan, the Gascon dialect spoken across this part of the Pyrenees, and refers directly to the terrain — the lake occupies a basin almost entirely ringed by rock walls, effectively "shut in" among the peaks. The qualifier "inférieur" (lower) distinguishes it from the higher-lying Lac d'Embarrat supérieur, its twin further up the same cirque. How do you get there? The usual starting point is Pont d'Espagne, which has paid parking. From there the trail follows the Marcadau stream before branching off at the Pont de Cayan bridge to climb through forest toward the cirque holding the lake. The full ascent typically takes around two and a half hours one way. There is no technical difficulty involved, but the climb is steady and sustained once past Pont de Cayan, so proper hiking boots and enough water are worth bringing along. What else is nearby? Most hikers treat Lac d'Embarrat inférieur as a waypoint rather than a final destination: trails continue on to the higher Lac d'Embarrat supérieur, as well as to Lac du Pourtet and Lac Nère. In summer, the surrounding Marcadau pastures are grazed by Lourdaise sheep, and the sound of their bells often echoes off the cirque's rock walls, adding a distinctly pastoral note to the setting. FAQ How high up is Lac d'Embarrat inférieur? The lake lies at approximately 2,078 metres above sea level. How long does the hike take? From Pont d'Espagne, reaching the lake typically takes about two and a half hours one way. Is the trail technically difficult? No technical climbing is involved, but the ascent is physically demanding due to the sustained climb after Pont de Cayan. What's the difference between this lake and Lac d'Embarrat supérieur? Lac d'Embarrat inférieur is the lower of the two Embarrat lakes; the supérieur lake sits higher up and is typically reached on the same outing. Are there farm animals in the area? Yes — in summer, Lourdaise sheep graze the Marcadau pastures surrounding the lake.

Lac de Bareilles

Bordères-Louron

Lac de Bareilles is a mountain lake set within the commune of Bordères-Louron, in the Hautes-Pyrénées department of southern France. It sits at roughly 1,760 metres above sea level, within the Louron valley, one of the side valleys branching off the wider Aure valley in the central French Pyrenees. Depending on which slope you approach it from, the lake is sometimes referred to under a second name, Lac de Bordères. How big is the lake and what surrounds it This is not a large body of water — the surface covers around 6.5 hectares, while the bottom drops to a depth of nearly 18 metres. The setting is classic high-Pyrenean terrain: rocky slopes, open pastureland, and clear sightlines toward the surrounding summits. Peaks visible from the shore include Jambet (2,121 m), Montious (2,171 m), and Pic du Lion (2,102 m), all popular add-on objectives for hikers who want to turn a lake visit into a longer day out. The area around the water falls within a regional nature reserve covering the Montious massif, which helps explain why the landscape here has stayed largely undisturbed. Getting to the lake on foot The most straightforward approach starts in the village of Bareilles, from where the walk to the shoreline takes about 30 minutes. The path climbs gently, passing through wooded sections before opening onto the rocky basin that holds the lake, and it is manageable for most visitors, including older children. A longer, more demanding option begins on the opposite side of the ridge, near Bourg d'Oueil in the neighbouring Haute-Garonne department; that route is sometimes combined with a crossing of nearby mountain passes and calls for a solid level of fitness. Best time to visit The trail is generally in good condition from June through October. Outside that window, snow cover at elevations above 1,700 metres can make the approach difficult or impassable. Summer offers the most comfortable conditions, with green pastures and daytime temperatures suited to a relaxed walk without heavy gear. Autumn brings a different mood to the slopes as the vegetation changes colour, though mornings turn colder and daylight hours shorten. Who should plan a visit Given the moderate walking time and limited elevation gain from Bareilles, the lake works well as a family day trip or as a short outing built into a longer stay in the Louron valley. Visitors looking for more than a lakeside view can use the surrounding peaks to extend the day by several hours and reach wider panoramas over the mountain group. FAQ What is the altitude of Lac de Bareilles? The lake lies at approximately 1,760 metres above sea level, within the Louron valley. How long does it take to walk to the lake? From the village of Bareilles, reaching the shore takes around 30 minutes on foot. Is this a suitable hike for families? Yes — the route from Bareilles is relatively short and not technically demanding, though it does climb uphill throughout. When is the best time of year to go? The period from June to October offers the most reliable trail conditions, with the path generally clear of snow. Can the hike be extended to a summit? Yes, nearby peaks such as Jambet, Montious, and Pic du Lion are popular extensions for more experienced hikers.

Lac des Évettes

Bonneval-sur-Arc

Lac des Évettes is a mountain lake in the Vanoise massif, in the Savoie department of France, within the municipality of Bonneval-sur-Arc. Geologically speaking, it is a very young feature: as recently as the first half of the 20th century, the site was still covered by a glacier, and the lake exists today because that ice retreated. How did the lake form? Lac des Évettes took shape between 1939 and 1949, once the glacier that had previously filled this section of the valley melted back and exposed a hollow that filled with meltwater. It is a clear, well-documented example of how quickly alpine landscapes can change as glaciers retreat. Today the glacier's terminus sits roughly one kilometre from the lake's shore — close enough that the ice is still clearly visible from the area around the water, which is part of what draws hikers up here in the first place. Where exactly is it located? The lake sits high in the Vanoise massif, close to the Italian border, surrounded by the peaks of Haute Maurienne. Its approximate coordinates are 45.3547°N, 7.1156°E. The surrounding terrain lies within Vanoise National Park, one of France's oldest national parks, known for high-altitude wildlife such as marmots and chamois, along with typical alpine flora. How do you get there? Most visitors start from Bonneval-sur-Arc, one of the highest and best-preserved villages in Savoie. From there, a road leads to the small hamlet of L'Écot, where the walking route begins toward the Col des Évettes and the Refuge des Évettes that sits near it. The path climbs through rocky terrain beneath surrounding cliffs, and reaching the refuge typically takes an hour and a half to two hours, with a substantial amount of elevation gain along the way. From the refuge, a gentler, mostly flat path continues to the lake itself, crossing a stone bridge over a mountain stream — adding roughly an hour to the round trip. What is there to see? The lake sits inside a rocky glacial cirque, with views toward the nearby glacier and the surrounding Haute Maurienne peaks, including the distinctive Albaron massif. The walk up to the refuge is popular with families, since the climb is manageable rather than technical, and marmots are commonly spotted sunning themselves on the rocks along the way. For more experienced hikers, the lakes and glacier here serve as a starting point for longer routes deeper into the Cirque des Évettes, where the scenery turns increasingly rugged and high-alpine. When is the best time to visit? The hiking season in this part of the Vanoise generally runs from June to September, when the trails are clear of snow and the nearby refuge is staffed and open to visitors. In spring and autumn, altitude and snow conditions can make the approach considerably harder, so it is worth checking current conditions before setting out. FAQ Is Lac des Évettes a glacial lake? Yes. It formed after the glacier that once filled this part of the valley retreated, a process that was complete between 1939 and 1949. How close is the glacier to the lake today? The glacier's edge currently lies about one kilometre from the lake's shore. Do you need mountaineering experience to reach it? The walk up to Refuge des Évettes requires reasonable fitness but is not technically difficult; the final stretch to the lake itself is flat and easy. Is there anywhere to stay nearby? Yes, the Refuge des Évettes near the Col des Évettes operates seasonally, offering meals and overnight accommodation during the summer. Is the lake inside a national park? Yes, the area around Lac des Évettes lies within the boundaries of Vanoise National Park.

Lac du Grand Méan

Bonneval-sur-Arc

Lac du Grand Méan is a high-altitude glacial lake sitting at roughly 2876 metres above sea level, inside Vanoise National Park, in the commune of Bonneval-sur-Arc (Savoie). It lies in the Graian Alps, right at the snout of the glacier that shares its name, tucked into a side branch of the valley known as the Cirque des Évettes. How did this lake form? The lake sits directly beneath the Grand Méan glacier, whose front ends in a steep wall of ice that drops straight into the water. During the warmer months, chunks break away from the glacier front and drift across the surface like small icebergs - a sight that few glacial lakes reachable on foot in the French Alps can match. The setting is stark and mineral, ringed by summits over 3000 metres, well above the treeline. How do you get there? The hike starts at the hamlet of l'Écot, about 4 km beyond the village of Bonneval-sur-Arc, at an elevation of roughly 2000-2027 metres - already inside Vanoise National Park. From there a marked path climbs the valley, crosses a bridge known as the Pont Saint-Clair (or Pont Romain), and enters the rocky terrain of the Cirque des Évettes, where the final stretch runs over loosely marked rock slabs. The round trip covers about 14 km with 950-1000 metres of elevation gain, translating into roughly 6-7 hours of walking. It's rated a demanding outing that calls for sturdy trekking boots, solid fitness, and confident footing on rock in places. Where can you stay along the way? At about 2594 metres, the trail passes the Refuge des Évettes, a hut with an unusual backstory. Built in 1969-1970 to a design by architect Guy Rey-Millet, it used a lightweight metal structure developed with engineer Jean Prouvé and Léon Petroff. The prefabricated components were flown in by helicopter, letting the whole hut go up in a single season. It's now regarded as a notable piece of 20th-century mountain architecture. Staying overnight here lets hikers split the walk over two days and reach the lake early in the morning, when the light on the ice is at its best. When is the best time to go? July through September is the ideal window. Earlier in the season, snow can still cover the rock slabs above the bridge, making footing unreliable and the route harder to follow. Frequently asked questions How high up is Lac du Grand Méan? The lake sits at about 2876 metres above sea level, right at the foot of the Grand Méan glacier. Where does the trail to the lake start? At the hamlet of l'Écot, about 4 km from Bonneval-sur-Arc, at roughly 2000 metres. How long does the hike take? The round trip is about 14 km with 950-1000 metres of elevation gain, usually 6-7 hours. Is there anywhere to stay overnight on the route? Yes, the Refuge des Évettes at about 2594 metres, a hut built with components designed by Jean Prouvé. Is the trail difficult? Yes, it demands good fitness and solid boots - the last section crosses loosely marked rock slabs.

Lac de Fenestre

Saint-Martin-Vésubie

Lac de Fenestre is a small high-altitude lake tucked into Mercantour National Park, within the commune of Saint-Martin-Vésubie in the Alpes-Maritimes department of southeastern France. Sitting at roughly 2,260 metres, it lies in the upper Vésubie valley, close to the Italian border, surrounded by the bare rock and sparse vegetation typical of this high mountain massif. Where does the trail to the lake start? Access to Lac de Fenestre begins at the Madone de Fenestre refuge and sanctuary, at 1,903 metres, reached by a mountain road roughly 12 kilometres from the village of Saint-Martin-Vésubie. Beyond its role as a trailhead, Madone de Fenestre is itself a notable Marian shrine: a Benedictine chapel is recorded here as early as the 9th century, later rebuilt by the Templars in the 13th century and restored again in the 14th century after the order's suppression. Every year, on the last Saturday of May, a procession carries the statue of the Virgin on foot from Saint-Martin-Vésubie back to the sanctuary. What does the hike to the lake look like? From the refuge, the GR52A long-distance trail leads up to the lake. The climb to Lac de Fenestre itself is rated easy, with no technical difficulty: about 360–370 metres of elevation gain, and a round trip of roughly 1 hour 45 minutes. That makes it one of the more approachable alpine lakes in the Mercantour, open to hikers without mountaineering experience. Is it worth continuing to Col de Fenestre? Hikers with more time can push on to Col de Fenestre, a pass at 2,474 metres marking the border between France and Italy. Combining the lake and the pass makes for a full outing of about 7 kilometres and 3 hours, with a total elevation gain close to 570 metres. Remnants of old border fortifications still stand at the col, a reminder of how strategically important this crossing once was, and the pass opens onto views of the Italian Piedmont side of the range. Towering above the whole basin is the Cime du Gélas, at 3,143 metres the highest summit in the Alpes-Maritimes department, visible from the shores of the lake and a popular objective for more experienced mountaineers. What wildlife might you see along the way? Mercantour National Park holds a large population of chamois and ibex, and both are commonly spotted around Madone de Fenestre without needing to venture far off the main path. It's one of the reasons the Vésubie valley and the Lac de Fenestre area draw both casual walkers and hikers planning longer high-mountain routes. FAQ How high up is Lac de Fenestre? The lake sits at approximately 2,260 metres above sea level, inside Mercantour National Park. Where do you start the hike? At the Madone de Fenestre refuge (1,903 m), reached by road from Saint-Martin-Vésubie. How long does it take to reach the lake? About 1 hour 45 minutes round trip, with 360–370 metres of elevation gain. Is the pass beyond the lake worth the extra effort? Yes — Col de Fenestre (2,474 m) sits on the French-Italian border, with views over Piedmont and traces of old fortifications, but it adds up to roughly 3 hours round trip in total. What animals live in the area? Chamois and ibex are common in Mercantour National Park and are frequently seen near Madone de Fenestre.

Lutersee

Andermatt

Lutersee is a small alpine lake in the municipality of Andermatt, in the canton of Uri, tucked into the Gotthard massif of the Swiss Uri Alps. It sits on the Oberalp side of the valley at roughly 2,357 metres above sea level, a spot most visitors only reach on foot — there is no road leading directly to it. Where exactly is the lake? The lake occupies a hollow at the foot of the Grossschijen peak, above the treeline. That means open, rocky surroundings on all sides: no forest, no shade, and nowhere to gather firewood. What it lacks in shelter it makes up for in clarity — the water is glacially clear, as is typical for high-altitude lakes in this part of the Alps. How big is Lutersee? Don't expect a vast body of water: Lutersee measures about 350 metres in length and just under 100 metres across. It is compact enough to take in at a glance from the shore, yet large enough to dominate the landscape around it, framed by bare rock and distant summits. How do you get there? There are two main approaches. The classic one starts in Andermatt itself: a zigzagging mountain trail climbs steadily out of the village and leads directly to the lake. It is a moderate high-altitude hike, but well maintained and considered manageable for families, with several scenic viewpoints along the way. The second option starts from the Oberalp Pass, where a gentler trail leads up to the lake; from the Nätschen terminus the walk typically takes around 30 to 40 minutes. Hikers looking to shorten the climb can take the cable car from Andermatt up to the Schneehüenerstock summit station or the intermediate Platte station, then walk down to the lake from there rather than starting from the valley floor. What views does it offer? The lake is as much about the panorama as the water itself. From its shores, the view opens onto the peaks of Graubünden and Ticino, as well as the surrounding Uri Alps. On calm, clear days the surface mirrors the ridgelines around it, which is why the spot is a favourite stopping point on high-altitude routes through the Oberalp and Andermatt area. Not far away, within the same Gotthard massif, rises the Gemsstock (2,961 m), a well-known viewpoint and ski area. Can you swim in it? On warm summer days the water can warm up enough for a swim, though given the altitude and alpine setting, it stays cool even in midsummer. This is a wild mountain lake rather than a managed bathing spot, so there are no facilities on site. Frequently asked questions How long does it take to reach Lutersee from Andermatt? It depends on the route and pace, but plan for a hike measured in hours rather than minutes. The cable car to Platte or Schneehüenerstock cuts the ascent considerably. Is there any shelter from sun or rain near the lake? No. Lutersee lies above the treeline, in open terrain with no trees and no natural shade. Is there another lake with the same name nearby? Yes — a separate lake also called Lutersee lies in the neighbouring municipality of Hospental, also within the Urserental valley. It is a distinct body of water from the one described here, which belongs to Andermatt. Can a visit to Lutersee be combined with other sights? Yes. A popular loop continues on to Lake Oberalpsee (2,027 m), allowing hikers to see two alpine lakes on a single outing.

Lac de Sainte-Marguerite

Les Orres

Lac de Sainte-Marguerite is a mountain lake within the commune of Les Orres, sitting inside the boundaries of the Les Orres ski resort in the Hautes-Alpes department of France. Its strikingly turquoise water fills a rocky basin at 2,227 metres of altitude, ringed by the peaks of Aupillon and Pouzenc. The shoreline opens onto views of the Écrins massif, which is a large part of why this lake ranks among the most visited natural spots in the area. Where exactly is the lake and how do you get there? The easiest access is by riding the Les Orres resort's mechanical lifts, which keep running through the summer season. Hikers who prefer to walk the whole way can start from the Pra Paisset car park or directly from the Les Orres 1800 station. The waymarked trail crosses the Bois Méan forest and the Eissalete valley before opening onto flower-covered pastures near the lake. Reaching it on foot takes roughly two hours one way, with around 600 metres of elevation gain — a route generally rated as a classic family outing rather than a technical climb. What will you see along the way? The approach shifts through several distinct landscapes: dense conifer forest, mountain streams, and finally open alpine meadows grazed by cattle. Marmots are a common sight in this stretch, and hikers occasionally spot chamois higher on the slopes. Picnic tables are set up both along the trail and by the lakeshore, making it easy to plan a longer stop. What can you do once you reach the lake? Lac de Sainte-Marguerite is primarily a picnic destination — the combination of turquoise water and the Écrins skyline draws both families and more seasoned hikers. The surrounding land is privately owned, so camping and overnight bivouacking are not permitted. For those wanting to continue further, the lake also works as a starting point for longer routes toward Col de l'Âne, Col de l'Aupillon, or the Jérusalem springs, all of which open onto wider views over the Serre-Ponçon valley. When is the best time to visit? The trail is busiest during the peak of the summer holidays, so visitors looking for a quieter walk should aim for the shoulder weeks of the season. The pastures around the lake are usually at their best before mid-July, before the summer crowds and drier conditions set in. Outside the summer season, when snow covers the area, the lake and its access trails are largely inaccessible. Frequently asked questions How high up is Lac de Sainte-Marguerite? The lake sits at 2,227 metres of altitude, in a basin framed by the Aupillon and Pouzenc peaks. How long does the hike take? Walking from the Pra Paisset car park or Les Orres 1800 takes about two hours, with roughly 600 metres of elevation gain. Can you camp by the lake? No. The land around Lac de Sainte-Marguerite is private property, and camping or bivouacking is not allowed. Is the hike suitable for children? Yes. It is considered one of the classic family hikes in Les Orres, following a waymarked trail of moderate difficulty. What wildlife might you see on the way? Cattle graze the alpine pastures, marmots are commonly seen, and chamois occasionally appear on the higher slopes. Can you shorten the walk by using the lifts? Yes, the Les Orres resort's summer lifts cut down the approach considerably compared with walking the entire route from the valley.

Lac Fer

Saint-Étienne-de-Tinée

Lac Fer 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 at 2,541 metres above sea level in the Haute-Tinée valley, tucked into the side valley of Malignas at the foot of the western face of Mont Ténibre. The lake fills a rocky cirque with a roughly circular outline and covers about 4.27 hectares. Its turquoise water, a trait shared by several high lakes in this part of the Mercantour, makes it a favourite subject for hikers carrying a camera. How do you get to Lac Fer? Most visitors set out from Saint-Étienne-de-Tinée, roughly 7 km from the lake by trail. The walk itself typically takes between 2 hours 15 minutes and 2 hours 45 minutes one way, depending on fitness and pace. Part of the approach follows the Chemin de l'Énergie, a former service track built to support hydroelectric works high in the valley. After a tunnel collapse in 2016, a permanent detour was put in place between Plan de Ténibre and the Lac Pétrus area, continuing on toward Lac Fer. The detour is clearly signposted and runs along an upgraded path, so it adds no real technical difficulty for hikers used to mountain trails. What should you know about the lake itself? Lac Fer is one of several lakes scattered across the upper reaches of the Haute-Tinée valley, below the Ténibre massif. Compared with its neighbours it is considered fairly deep and sizeable. The local fishing association, AAPPMA Haute Tinée, stocks the lake with fish, and by some accounts Lac Fer receives heavier restocking than a few of the surrounding lakes — which makes it a draw for anglers, provided they hold the required permit. Weather above 2,500 metres can turn quickly: a clear morning can give way to fast-moving cloud and a sharp drop in temperature within the hour, so an early start and a close eye on the sky are standard advice from regulars. What routes pass near Lac Fer? The lake is a waypoint on longer, multi-day loops through the Mercantour. A well-known three-day itinerary out of Saint-Étienne-de-Tinée links Lac Pétrus, Lac Fer, Lac des Babarottes and the Lacs de Vens, and more ambitious hikers extend it with a climb to the nearby Aiguilles de Tortisse (2,672 m). For a single-day outing, Lac Fer also works well as a destination in its own right, with a return by the same path. Anyone planning the route should check the IGN Haute Tinée 1 map (3639 OT), which marks the Chemin de l'Énergie and the landmarks around Plan de Ténibre. FAQ How high up is Lac Fer? The lake lies at 2,541 metres, in a rocky cirque below the western face of Mont Ténibre. How long does it take to reach the lake? From Saint-Étienne-de-Tinée, allow between 2 hours 15 minutes and 2 hours 45 minutes one way, over roughly 7 km. Can you fish at Lac Fer? Yes. The lake is stocked by the local angling association, AAPPMA Haute Tinée, though fishing requires the permit valid within Mercantour National Park. Is the trail technically demanding? It's a typical high-mountain trail with substantial elevation gain but no climbing sections — good fitness and proper footwear are enough. One stretch follows a detour set up on the Chemin de l'Énergie after a tunnel collapse in 2016. Can Lac Fer be combined with other lakes in one trip? Yes — it sits on a popular loop that also takes in Lac Pétrus, Lac des Babarottes and the Lacs de Vens, often walked as a two- or three-day trip with an overnight in the mountains or at a nearby refuge.

Lac Chaffour

Saint-Étienne-de-Tinée

Lac Chaffour is a glacial mountain lake sitting at roughly 2621 metres above sea level, in the municipality of Saint-Étienne-de-Tinée in the Alpes-Maritimes department. It lies deep in the Haute-Tinée valley, inside the Mercantour National Park, and forms part of a small cluster of high-altitude lakes gathered around the nearby Lac de Rabuons. What does the lake look like? Lac Chaffour is almost circular and covers an area of about 2 hectares. Its shores are largely covered in grass, which sets it apart from several neighbouring lakes ringed by bare rock and scree. That grassy fringe makes it easy to walk along the waterline and gives the lake a gentler feel than the starker, stonier basins higher up the slope. Its water comes from melting snow and old glacial ice that carved out this stretch of the mountains long ago. Where exactly is Lac Chaffour? The lake sits just below Lac du Cimon, a slightly higher lake in the same chain, and close to Lac de Rabuons, the largest body of water in this part of the valley. All three lie along the path leading toward the Pas de Rabuons pass, forming a well-known string of alpine lakes that hikers often visit together on a single, longer outing. How do you get there? From the centre of Saint-Étienne-de-Tinée, the trail to Lac Chaffour covers about 9 km, with the climb typically taking 2 hours 45 minutes to 3 hours one way. A shorter option starts at the Rabuons refuge, from which the lake is only about 1 km away, roughly 20 to 30 minutes along the path toward the Pas de Rabuons. No climbing gear is needed, but sturdy trekking boots are worthwhile given the altitude and rocky ground, and it helps to carry the relevant map - the area is covered by IGN sheet "Haute Tinée" 3639 OT. Are there fish in the lake? Lac Chaffour is no longer stocked on a regular basis, yet it still holds a population of trout that sustains itself through natural reproduction. The lake draws a modest number of anglers visiting the Haute-Tinée valley, though its distance from the road means a fishing trip here calls for a full day. Why visit Lac Chaffour? The lake sits within the classic high-mountain scenery of the Mercantour: rocky ridgelines, open pastures, and a scattering of glacial lakes clustered around Rabuons. It suits travellers looking for quiet and open space away from busier trails, especially those keen to see several lakes in one trip by combining Chaffour with Rabuons and Cimon. The view of the surrounding peaks and the calm, grassy shoreline make it a natural spot to pause halfway through a longer hike. When is the best time to go? Given its altitude above 2600 metres, the lake is easiest to reach in summer, from July to September, once snow has cleared from the trail. Outside that window it is worth checking current conditions, since the higher passes in this chain can stay snow-covered well into the season. Frequently asked questions How high up is Lac Chaffour? The lake lies at an altitude of around 2621 metres above sea level. How long does it take to reach the lake from Saint-Étienne-de-Tinée? The full route covers about 9 km, with the climb usually taking 2 hours 45 minutes to 3 hours. Are Lac Chaffour and Lac du Cimon the same lake? No, they are two separate lakes - Lac Chaffour sits slightly lower, while Lac du Cimon lies just above it, in the same chain of lakes above Rabuons. Can you fish here? Yes, the lake holds trout that reproduce naturally, although it is no longer regularly restocked. Is the lake inside Mercantour National Park? Yes, Lac Chaffour lies within Mercantour National Park, in the Haute-Tinée valley.

Lac du Cimon

Saint-Étienne-de-Tinée

Lac du Cimon is a high-altitude lake sitting at roughly 2,645 m above sea level in the commune of Saint-Étienne-de-Tinée, in the Alpes-Maritimes department. It lies in the Haute-Tinée valley, inside Mercantour National Park — one of the wildest and least-crowded ranges in the French Alps. Where exactly is Lac du Cimon? The lake occupies a high mountain cirque just above Lac de Rabuons, right next to another small lake, Lac Chaffour, which sits slightly lower at around 2,621 m. Together these lakes form a chain typical of the granite, rock-strewn terrain of Haute-Tinée: bare stone, sparse alpine vegetation, and open views of the surrounding ridgelines. Lac du Cimon's coordinates are approximately 44.28°N, 6.9883°E. How do you get there? The classic approach starts in Saint-Étienne-de-Tinée (about 1,144 m) and follows the "chemin de l'énergie," a trail climbing the valley toward Refuge de Rabuons. From the refuge, the path continues past Lac de Rabuons and Lac Chaffour before reaching Lac du Cimon. The full there-and-back covers roughly 20 km with about 1,580 m of elevation gain — a full day out, typically 7.5 to 8 hours of walking. It's a demanding but rewarding route, popular with hikers exploring Haute-Tinée once the trails clear of snow in summer. What else is worth seeing nearby? From the Chaffour and Cimon lakes, trails continue toward Pas de Rabuons and Mont Ténibre (3,031 m), the highest summit in the entire Tinée valley and a common objective for hikers venturing deeper into this part of Mercantour. Lac de la Montagnette lies in the same area. The surrounding landscape is stark and mineral — bare granite slopes and scree that contrast with the greener, lower stretches of the Tinée valley further down. When is the best time to visit? Given the altitude — well above 2,600 m — Lac du Cimon is realistically reachable on foot mainly from June/July through September, once snow has cleared from the passes. Outside that window, the route can demand winter mountaineering gear and experience. Frequently asked questions How high up is Lac du Cimon? The lake sits at roughly 2,645 m above sea level, in the high mountain section of the Haute-Tinée valley. Is Lac du Cimon inside Mercantour National Park? Yes. The lake lies within Mercantour National Park, in the commune of Saint-Étienne-de-Tinée. How long is the hike to Lac du Cimon? The popular route from Saint-Étienne-de-Tinée is about 20 km round trip with roughly 1,580 m of elevation gain, usually taking 7.5 to 8 hours. Is Lac du Cimon the same lake as Lac Chaffour? No — they are two separate lakes close together in the same high cirque. Lac Chaffour sits slightly lower, at about 2,621 m, while Lac du Cimon sits higher, at about 2,645 m. What peaks can you see from the lake? Mont Ténibre (3,031 m), the highest point in the Tinée valley, rises nearby, reached via trails that start from the Chaffour and Cimon lakes area. Is this hike suitable for beginners? It's a demanding, full-day mountain hike with substantial elevation gain — best suited to hikers with high-mountain experience and solid fitness.

Lacs Varicles

Saint-Étienne-de-Tinée

Lacs Varicles is a group of high-altitude lakes sitting at roughly 2,435 m, in the commune of Saint-Étienne-de-Tinée in the Alpes-Maritimes department. The lakes lie in the Haute-Tinée valley, inside Mercantour National Park — one of the wildest corners of the French Alpes-Maritimes — making this a destination for hikers looking to get away from the busier trails of the region. Where exactly are the lakes? Lacs Varicles sits in the upper reaches of the Mercantour massif, above the Plan de Ténibre (2,335 m), near the path known as the Chemin de l'Énergie. The area falls within the national park's core zone, meaning a stark alpine setting of rock, high pasture and small pools fed by snowmelt. How do you get there? The shortest approach starts from Saint-Étienne-de-Tinée (around 1,160 m) and involves more than 1,200 m of elevation gain. The route climbs steadily via the Chemin de l'Énergie, and the final stretch to the lakes themselves runs off the marked trail. This is a full-day outing that calls for solid fitness and some comfort navigating mountain terrain, since the last section isn't fully waymarked. What else is there to see nearby? Lacs Varicles works well as a base for exploring the wider high-altitude section of Haute-Tinée. Close by are: Lacs de Ténibre (about 2,572 m), sitting higher up and opening onto sweeping views of the Auron massif and surrounding peaks, Lacs Malignes, also known as Lacs de la Garotte, Refuge de Vens and Refuge de Rabuons, mountain huts used on longer, multi-day routes through the Haute-Tinée lake country. Loop hikes linking the Malignes, Varicles and Pétrus lakes are a popular option for anyone planning a longer stay in this part of Mercantour, as are multi-day traverses between the refuges. Who is this hike for? Given the elevation gain and the partly unmarked final stretch, reaching Lacs Varicles suits experienced mountain hikers rather than beginners. In exchange, it offers something the region's better-known lakes — such as Lac du Rabuons — don't: quiet, and far fewer people on the trail. FAQ How high up are the Lacs Varicles? The lakes sit at around 2,435 m, in the upper part of Mercantour National Park. Where's the best place to start the hike? The shortest approach begins in Saint-Étienne-de-Tinée (about 1,160 m), with more than 1,200 m of elevation gain to climb. Is the hike difficult? Yes — it's a full-day trip with substantial elevation gain, and the last stretch to the lakes runs off-trail, so some mountain hiking experience is needed. What else can you see beyond the Varicles lakes themselves? Nearby you'll find the Lacs de Ténibre, the Lacs Malignes (Lacs de la Garotte), and the Refuge de Vens and Refuge de Rabuons huts, which allow the trip to be extended over several days. Are the lakes inside Mercantour National Park? Yes, Lacs Varicles lies within Mercantour National Park, in the commune of Saint-Étienne-de-Tinée.

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Grand lac de Laffrey

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Lac d'Embarrat inférieur

Lac de Bareilles

Lac des Évettes

Lac du Grand Méan

Lac de Fenestre

Lutersee

Lac de Sainte-Marguerite

Lac Fer

Lac Chaffour

Lac du Cimon

Lacs Varicles

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