Best lakes in Ain are situated in a department in France, nestled between the Jura Mountains and the Dombes plains. This region features a collection of lakes that offer opportunities for nature exploration, relaxation, and outdoor activities. The landscape includes glacial lakes, high-altitude gems, and artificial reservoirs. These bodies of water are often surrounded by forests and limestone cliffs, providing diverse natural settings.
Last updated: June 17, 2026
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Popular around Ain
European Divide Trail — 7,600 km across the continent
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Gravel in Ain — sporty loops between water and mountain
Gems of the Ain — MTB routes amidst natural beauty
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Cycling in the Ain – nature, heritage and the great outdoors
Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical
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This spot didn't impress me: "blue lake" is an exaggeration, it's a very small reservoir... lots of people on the banks too.
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Smaller pond than lake..more green than blue. Average.
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More of a side arm of the Rhône Lateral Canal, nice place and beautiful cycle path.
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Several lakes in Ain are ideal for families. The Cormoranche Lake Leisure Center offers supervised swimming, a sandy beach, and various facilities. Lake Genin provides a peaceful setting with supervised swimming, a treetop adventure trail, and a themed exploration path. Lake Nantua also has supervised bathing areas and water activities suitable for all ages.
You can enjoy a variety of water activities. Lake Nantua is popular for swimming, sailing, canoeing, pedal boating, and paddleboarding. Lake Genin offers supervised swimming in summer and ice skating in winter when conditions allow. At Lac de Coiselet, you can swim (unsupervised at Chancia beach) and go canoe-kayaking. The Cormoranche Lake Leisure Center also provides supervised swimming.
Yes, many lakes in Ain are surrounded by excellent hiking opportunities. Lake Nantua has trails offering panoramic views. Around Lake Genin, you'll find hiking paths through pine forests. Lac de Sylans features trails along its banks, and Lac de Coiselet has an easy 9 km loop trail leading to Pic d'Oliferne with incredible views. For more options, explore the running trails in Ain or cycling routes in Ain, which often pass by or near these lakes.
Ain's lakes boast diverse natural beauty. Lake Nantua is a glacial lake cradled by towering limestone cliffs, with waters that shift from sapphire to emerald. Lake Genin, known as the 'Little Canada of the Haut-Bugey,' is surrounded by pine forests and features fragile peat bogs. Lac de Sylans is notable for its exceptionally pure, low-mineral water and its formation from a spectacular rock collapse. The Lac Bleu on the Gardon is named for the bright blue shades of its water.
Yes, Lac de Sylans has a unique industrial history. Until 1917, it was a center for ice trade, with ruins of former ice factories still visible on its banks. This history is tied to its exceptionally pure, low-mineral water. Lac de Coiselet, while an artificial reservoir, offers views of the ruins of an 18th-century castle from the Pic d'Oliferne trail.
Fishing is a popular activity at several lakes. Lake Nantua is known for pike, trout, and whitefish. Lac de Sylans is a paradise for pike anglers and also rich in carp and bream. Lac de Coiselet is a popular destination for fishermen due to the Ain River crossing it.
The best time to visit depends on your preferred activities. Summer (June to August) is ideal for swimming and water sports, with supervised bathing areas available. Spring and autumn offer pleasant temperatures for hiking and enjoying the changing foliage. In winter, Lake Genin can freeze, allowing for ice skating, cross-country skiing, and snowshoeing.
For a more tranquil experience, consider Lac d'Ambléon, a small altitude lake in the heart of Bugey, easily accessible yet offering a beautiful natural setting. Lake Genin is known for its wild and peaceful ambiance, surrounded by pine forests. Lesines Pond, bordering the Vaux marsh, is a natural sanctuary ideal for contemplative walks.
The lakes and their surroundings are rich in biodiversity. Lesines Pond borders the Vaux marsh, a natural sanctuary home to nearly 160 plant species, including rare carnivorous plants and orchids. The peat bogs around Lake Genin also host unique flora. Many lakes are classified as Sensitive Natural Areas (ENS), indicating their ecological importance.
Yes, Lac de Coiselet (also known as Chancia Lake) is an artificial reservoir created in 1970 on the Ain River. Another example is the Aubépin Pond, an artificial water reserve created in 2005. These offer different landscapes and activities compared to the natural glacial lakes.
Visitors frequently praise the stunning natural beauty, the variety of outdoor activities, and the peaceful atmosphere. Many appreciate the changing colors of Lake Nantua and the 'Little Canada' feel of Lake Genin. The opportunity for family outings, picnics, and enjoying nature's tranquility are also highly valued.
Yes, the region around Ain's lakes offers mountain biking trails. For example, the areas surrounding Lake Nantua and Lake Genin are popular for mountain biking. You can find detailed routes and guides for MTB trails in Ain, many of which explore the diverse landscapes near the lakes.


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