Best lakes around Tende are found within the Mercantour National Park in the Alpes-Maritimes department of France. This region features an alpine landscape with high-altitude lakes, many of which are glacial in origin. The area offers opportunities for hiking and wildlife observation. It also holds cultural significance with ancient rock engravings in valleys like Fontanalbe.
Last updated: May 9, 2026
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On the descent near the tunnel, I found a landslide, by bike it was passable, but by car no.
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https://youtu.be/rm1T5izm57A?si=Wjv8z7eOzrlJQNXL A wonderful, shimmering green lake, which the locals also like to swim in. There are certainly a lot of cars parked along the road on weekends. The scenery is fantastic.
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Very beautifully situated reservoir, but the water is not inviting for swimming. The dam is definitely worth seeing.
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Beautiful alpine lake at just over 2000m with clear waters and a view of Mount Frisson
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The refuge is located on the banks of the upper Long lake, in the heart of the rock engravings of the Vallée des Merveilles, surrounded by numerous lakes and peaks: Bégo, Grand Capelet, Cime du Diable... The refuge is located in an open-air museum. This exceptional archaeological site, classified as a historical monument, extends between two valleys around Mont Bégo. There are 40,000 rock engravings dating from -4000 to -2000 BC, which are marks of pastoral occupation. When you cross the Vallée des Merveilles on the GR, you feel an almost mystical and very unusual side.
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The BDC is beautiful to reach, it is located in the upper Gesso Valley at the end of the asphalt road.
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First time visitors should be warned this is a refuge, not a hotel. As such don’t go expecting anything more than basic facilities. If you want a shower then it will be with cold water taken and filtered directly from the nearby lake. Without exception, we found the staff to be very friendly, as were all the hikers we spoke to. No matter if you arrive alone or with a group, everyone is staying at the refuge for the same reason as you, and this makes starting a conversation with someone you don’t know very easy. The advantages you get from staying in such a refuge is knowing you’ll be given somewhere dry and warm to sleep, plus something hot to eat. When it came close to having dinner everyone helped move all the rectangle tables into one long one, where we all then sat and enjoyed an amazing hot stew with bread. After dinner it was a quick cold shower. After which we relaxed outside for a while before kipping down for the night. Breakfast here was available, as was a packed lunch to take on our onward journey. All of course at extra cost. Like all refuges around the world, there is a limit to the amount of hikers each can accommodate at any one time. Because of this you’ll need to book a place well in advance of your trip. Arriving on the day looking for a place is unlikely to be successful unless a booking goes unfilled, which wouldn’t be noticeable until well after sunset. You can camp outside near the refuge but you’ll need to get permission first.
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Excellent panoramic point that allows you to see the entire body of water from above
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The region around Tende, particularly within the Mercantour National Park, is home to several stunning high-altitude lakes. Lac de Trécolpas is a must-see, known for its crystal-clear waters and dramatic setting. Agnel Lake (Lac de l'Agnel) offers grandiose mountain scenery and is one of the largest lakes in the massif. In the Fontanalbe Valley, Lac Vert stands out with its emerald green waters reflecting the surrounding peaks.
Yes, Tende features both natural glacial lakes and man-made reservoirs. Lake Chiotas is a notable artificial lake built in the late 1970s for electricity production, beautifully enclosed by mountains. Another artificial lake, Lago della Rovina, is also used for fishing and serves as a starting point for excursions.
The lakes in the Fontanalbe Valley, including Lac Vert, Lacs Jumeaux, and Lac des Grenouilles, are unique for their combination of natural beauty and historical significance. The area is part of an open-air museum featuring thousands of Bronze Age rock engravings, particularly along the 'Sacred Way' near Lac Vert. Mont Bégo, considered sacred by ancient Ligurian peoples, overlooks this valley, adding a deep cultural layer to the stunning landscapes.
The most favorable time for visiting the high-altitude lakes around Tende, especially for hiking and swimming, is during the summer months, typically from July to September. During this period, snow has usually melted, trails are accessible, and the weather is generally pleasant. For lakes like Lac de Trécolpas, swimming is permitted in its cool waters during these months.
Yes, swimming is permitted in some of the lakes around Tende. For instance, Lac de Trécolpas allows swimming in its cool waters during the summer. Lago della Rovina is also large and suitable for swimming.
The Mercantour National Park, where many of these lakes are located, is rich in wildlife. Hikers often spot ibex and chamois along the trails leading to lakes like Lac de Trécolpas and Agnel Lake. Marmots are frequently observed in the Fontanalbe Valley, particularly around Lacs Jumeaux and Lac des Grenouilles, especially during summer.
Yes, there are options for families and those seeking less strenuous hikes. Lago della Rovina is considered family-friendly and offers a less steep path to the Genova refuge. Lac des Grenouilles in the Fontanalbe Valley is accessible via a relatively short hike, making it a picturesque spot for a picnic with views of Mont Bégo, suitable for families.
Beyond hiking to the lakes, the Tende area offers a variety of outdoor activities. You can explore numerous routes for gravel biking, mountain biking, and road cycling. These guides provide details on routes like the 'Via del Sale Loop' for gravel biking or the 'Mont Chajol and Peyrafique Pass Loop' for MTB.
Yes, some lakes are reached via more challenging routes. For example, reaching Lower Frisson Lake involves a path that can be exposed and requires using your hands in certain points, especially if you continue towards the lakes of the Alberghi. It's advised to avoid this path in bad weather or if you suffer from vertigo.
While wild camping regulations apply within the Mercantour National Park, some designated options exist. For instance, near Lago della Rovina, there is a 'not equipped' and inexpensive campsite that requires booking, especially during summer and on weekends. For the Merveilles Refuge, you can pitch a tent nearby with prior permission if the refuge is full.
Yes, some areas near the lakes offer facilities. The Merveilles Refuge provides accommodation and meals, serving as an ideal starting point for exploring the 'Valley of Wonders.' Near Lago della Rovina, there's a small bar and a picnic area. However, many high-altitude lakes are in remote areas, so it's best to plan accordingly and carry supplies.
Within the Mercantour National Park, regulations regarding dogs are strict to protect wildlife. Dogs are generally not permitted on trails within the central zone of the park, even on a leash. It's crucial to check specific local regulations and signage before planning a hike with your dog, as rules can vary by area and season.


Still not found your perfect lake around Tende? Check out the guides of these regions to see even more beautiful places.