Best lakes in Ardèche are found within a department in southeastern France, characterized by its diverse natural landscapes including mountains, forests, and river valleys. The region offers a variety of aquatic environments, from ancient volcanic craters to artificial reservoirs. These lakes provide opportunities for outdoor activities and natural exploration.
Last updated: May 3, 2026
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Popular around Ardèche
GR 3 between Puy-en-Velay and Gerbier de Jonc – The Loire from ocean to the source
Hexatrek – The Cévennes to the Pyrenees between gorges and limestone plateau
Grande Traversée de l'Ardèche (GTA) – Mountain biking
Ardèche Cévennes Divide – Bikepacking on a gravel bike
Follow the sun – riding from Germany to the south of France
Via Rhôna — cycling the Rhone Valley Way from Lyon to the Mediterranean
Routes between Nîmes and Mende – cycling by train with liO
The trails of Ardèche — on the train tracks by bike
Via Fluvia – Cycle Route between Loire and Rhône
Cycle routes in the footsteps of the railway in the Ardèche
A truly beautiful stretch of the route! The stunning scenery and excellent cycle paths make cycling on the ViaRhôna a very special experience! :-)
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A truly beautiful stretch of the route! The stunning scenery and excellent cycle paths make cycling on the ViaRhôna a very special experience! :-)
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What a magnificent haven of peace! Let's remind those who are disrespectful that swimming and—by association—dipping your feet is FORBIDDEN. The site's flora and fauna are very fragile.
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a very beautiful lake. a magnificent place
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Very nicely located grotto, you can also go swimming below.
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Built in 1858 to supply Annonay with drinking water, the Ternay dam now offers a pleasant shaded place where walkers and runners meet.
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Collanges Lake is a 48-hectare artificial lake (which also serves as a water control dam for the Eyrieux Valley). Swimming is prohibited, but fishing is permitted (category 2). For swimming, you can visit the Eyrium aquatic center, with its 1,650 m² nestled in unspoiled nature, a large swimming pool, beaches, and games.
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Ardèche offers a variety of popular lakes. Lac d’Issarlès, formed in a volcanic crater, is known for its clear waters and supervised swimming. Ternay Dam and Lake is appreciated for its pleasant 4-kilometer circular path. Another gem is Font Vive, a natural monument with exceptionally clear and fresh water.
For water sports and swimming, Lac d’Issarlès offers pedal boats, canoes, and paddleboards, with supervised swimming in summer. Lac de Devesset is a hub for canoeing, paddleboarding, and sailing, also with supervised swimming. Lac de Saint-Martial features a supervised beach and water games, while the vast Lac de Naussac (nearby in Lozère) is excellent for funboarding, sailing, and more.
Yes, several lakes are ideal for families. Lac d’Issarlès and Lac de Saint-Martial both have supervised beaches and water activities during summer. Lac de Devesset offers an adventure playground and mini-golf, alongside water sports. Ternay Dam and Lake and Lac des Collanges are also noted as family-friendly spots.
Many lakes in Ardèche offer scenic hiking opportunities. A 3.6 km trail circles Lac d’Issarlès, and a 1.5 km walk is available around Lac de Saint-Martial. Lac de Devesset has a tranquil 1 to 1.15-hour loop path. For more extensive options, explore the running trails or road cycling routes in Ardèche, which often pass by or near these beautiful water bodies.
Ardèche's lakes boast diverse natural features. Lac d’Issarlès and Lac de Saint-Martial are notable for their volcanic origins, with Issarlès being a deep crater lake. Lac de Devesset is classified as a Natural Area of Ecological, Faunistic, and Floristic Interest (ZNIEFF) due to its rich biodiversity. Font Vive is a natural monument known for its exceptionally clear, cold spring water.
The best time for swimming in Ardèche's lakes is during the summer months, particularly July and August. Many lakes, such as Lac d’Issarlès, Lac de Saint-Martial, and Lac de Devesset, offer supervised swimming during this period. While the water can be fresh due to altitude, it's refreshing on warm days.
Several lakes in Ardèche are popular fishing spots. Lac d’Issarlès is known for trout, pike, and perch. Lac de Saint-Martial and Lac de Devesset also permit fishing from equipped pontoons. Lac de Naussac, though primarily in Lozère, is a significant fishing destination due to its proximity and size. Note that swimming is prohibited at Lac des Collanges, but fishing is permitted.
While the lakes themselves are primarily natural attractions, the surrounding Ardèche region is rich in history. For example, Lac de Saint-Martial is near the charming village of Saint-Martial, and the area around Ternay Dam and Lake features a dam built in 1858. Exploring the villages and natural parks around the lakes will often reveal local heritage.
Visitors frequently praise the clear, fresh waters and the serene natural settings of Ardèche's lakes. Many appreciate the opportunities for cooling off, swimming, and engaging in various water sports. The scenic trails around lakes like Lac d’Issarlès and Ternay Dam and Lake are also highly valued for walks and runs amidst beautiful landscapes.
Yes, many lakes are equipped with visitor amenities. Lac de Saint-Martial offers shaded picnic areas and water games. Lac de Devesset includes an adventure playground for children and a mini-golf course. You'll often find facilities and picnic spots at popular lake destinations, enhancing the visitor experience.
For a more peaceful experience, consider Lac Coucouron, a beautiful mountain lake offering a quiet setting with a small beach and picnic area. While popular lakes like Issarlès can be busy in peak season, exploring smaller or less-known spots like Lac des Pierrelles or Lac des Meinettes might offer a quieter escape, especially outside of summer weekends.
The Ardèche region, including areas around its lakes, offers diverse cycling routes. You can find road cycling routes that traverse scenic landscapes, and gravel biking trails for those seeking off-road adventures. Many routes provide views of the lakes or pass through the surrounding natural parks, such as the Monts d'Ardèche Regional Nature Park.


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