Best lakes around Les Chalesmes are found within the surrounding Jura region, often referred to as the "Lakes Region." This area features several glacial lakes, offering diverse natural landscapes and activities. The region is characterized by its tranquil waters, forests, and rocky ridges, providing settings for nature exploration and water sports. These lakes are significant for their ecological importance and geological formations.
Last updated: August 14, 2026
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🌿 Lake Narlay: Essential Information Location: Frasnois municipality, in the Lakes Region (Jura). Altitude: 748 m. Surface area: 41 ha. Depth: Up to 40 m, making it the deepest lake in the Jura. Origin: Glacial lake, likely formed by a rockfall. Environment: Meadows, forests, peat bogs, Natura 2000 and Ramsar sites. (Copilot)
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Lac de Narlay is a lake in the Jura department of France, about 10 km south of Champagnole in Franche-Comté. It lies at an altitude of 748 m in the municipality of Le Frasnois and covers an area of approximately 0.4 km². The lake is 950 m long and 625 m wide. Its maximum depth is 40 m.
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Lacs de Maclu are two adjacent lakes in the western part of the French Jura, in the Jura department of Franche-Comté. They are located at an elevation of 779 m in a depression in the High Jura, in the region of the Five Lakes near Le Frasnois, about 12 km south of Champagnole. The Petit Maclu, located to the northeast, has an area of 5 hectares, a length of about 500 m, and a maximum width of about 120 m. Its greatest depth is 11 m. It lies entirely within the municipal territory of Le Frasnois.
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Easy, shaded path, perfect for cooling off in hot weather.
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The Serpentine, (first tributary of the Ain river whose source is located a little higher) forms a small lake near the ruins of a mill. It is from a cornice that this beautiful natural waterfall 15 meters high comes to life when the water level is sufficient.
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Very impressive, about 1 km walk from the parking lot nearby, swimming not possible and not recommended
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From a small lake at the level of the mill, the river continues before cascading over a 15 meter high ledge. An amazing waterfall.
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The region around Les Chalesmes, often called the 'Lakes Region,' features a variety of lakes. You'll find stunning natural glacial lakes like Lake Narlay, known for its depth, and the picturesque Lac de Bonlieu. There are also interconnected lake systems such as the '4 Lakes' (Lacs d'Ilay, Petit Maclu, Grand Maclu, and Narlay), and the vast man-made Lac de Vouglans, which is the third-largest in France.
Yes, the lakes region offers excellent hiking. A popular option is the 'Tour of the 4 Lakes,' an 11 km route that winds through forests and along the edges of Lacs d'Ilay, Petit Maclu, Grand Maclu, and Narlay. You can also explore the Trail Along the Lakes of Haut-Jura, an easy forest trail with clear water and idyllic spots. For more hiking options, check out the hiking guide for Les Chalesmes.
For family-friendly walks, the marked path around Lac de Bonlieu is ideal, offering serene natural beauty and picnic areas. The Trail Along the Lakes of Haut-Jura, which follows the Grand Lac Maclu, is also an easy forest trail suitable for families. The area around Petit Maclu Lake also offers easy, shaded paths perfect for cooling off.
Swimming regulations vary by lake. While swimming is generally prohibited in many of the natural glacial lakes like Lac de Bonlieu, Lac de Narlay, and the '4 Lakes' to preserve their ecosystems, Lake Narlay explicitly allows swimming. Lac de Vouglans, being a large man-made reservoir, has three sandy beaches (Bellecin, Mercantine, and Surchauffant) where swimming is a popular activity.
Lac de Vouglans is an 'adventure playground' for water sports. You can enjoy motorboating, electric boating, catamaran sailing, pedalo, canoeing, and fishing. Cruising on the lake aboard the 'Louisiane' is also a popular way to experience its vastness. Other lakes, like Lac de Narlay, are known for fishing, particularly trout and perch.
Absolutely. A viewpoint at La Ronde offers magnificent views of Lac de Bonlieu. For a breathtaking panoramic experience, visit the viewpoint of the 4 Lakes, perched at 900 meters, which provides a 360° view of Lacs d'Ilay, Petit Maclu, Grand Maclu, and Narlay, showcasing their varying colors. Lacs des Mortes and Bellefontaine also have viewpoints like Roche Champion and Roche Bernard.
The warmer months, from late spring to early autumn, are generally best for enjoying water activities, hiking, and cycling around the lakes. The colors of the lakes and surrounding forests are particularly vibrant during this time. In winter, Lacs des Mortes and Bellefontaine can be explored with snowshoes when frozen, offering a unique experience.
Yes, many lakes are part of protected sites. Petit Maclu Lake is located in a Natura 2000 area, providing an exceptional habitat for many animal species. Lac de Narlay is also classified as a Natura 2000 and Ramsar site due to its ecological importance. Lacs des Mortes and Bellefontaine are nestled amidst peat bogs and high-altitude wetlands, home to remarkable biodiversity and rare boreal-arctic vegetation.
Yes, the region is known for its natural water features. Lac de Bonlieu is one of the sources of the Hérisson river, which feeds the famous Cascades du Hérisson (Hérisson Waterfalls). Additionally, the Moulin du Saut Waterfall, a 15-meter high cascade, is formed by the Serpentine river near the ruins of a mill, offering a beautiful natural sight.
The region offers various cycling routes. You can find gravel biking routes like the 'Grand Maclu Lake – Shore of Lac de Narlay loop from Le Frasnois,' which is an easy route. For road cycling, options include the 'Petit Maclu Lake – La Saine Gorges loop from Foncine-le-Haut.' More details can be found in the gravel biking guide and the road cycling guide for Les Chalesmes.
Visitors particularly appreciate the serene and wild natural beauty, the clear waters, and the diverse landscapes. The opportunities for peaceful walks, the rich biodiversity, and the stunning panoramic views from various viewpoints are frequently highlighted. The area's tranquil atmosphere and the chance to immerse oneself in nature are highly valued by the komoot community.


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