Best lakes around Entre-Deux-Monts are found in the Jura department of eastern France, a region known as the "Land of Lakes." This area features numerous scenic bodies of water, including large artificial lakes, natural glacial lakes, and a collection of smaller lakes set amidst forests and meadows. The landscape is characterized by its diverse aquatic environments, offering a range of natural attractions. Many of these lakes are part of protected natural areas, highlighting their ecological significance.
Last updated: May 26, 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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Small, rocky stretch of beach that you can climb down to, as well as good views of Lac Le Grand Maclu.
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Lac d'Ilay, also called Lac de la Motte, is a lake in the Jura department of France, about 14 km south of Champagnole in Franche-Comté. It lies at an altitude of 774 m in the municipalities of Le Frasnois and La Chaux-du-Dombief and covers an area of approximately 0.7 km². The lake is 1.9 km long, has a maximum width of 400 m, and has a small island (Île de la Motte). Its greatest depth is 32 m.
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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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Easy path to walk in the shade, very welcome in case of strong heat.
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For a wide range of water sports, Lac de Vouglans is an excellent choice. It's the third-largest artificial lake in France, offering sailing, windsurfing, kitesurfing, canoeing, kayaking, paddleboarding, and swimming at its equipped beaches. Lac de Saint-Point also provides options for swimming, fishing, pedal boating, canoeing, kayaking, sailing, and stand-up paddleboarding.
Yes, the region offers numerous trails. The Four Lakes Region (Lacs de Narlay, Ilay, Petit Maclu, and Grand Maclu) is a prime destination for hikers, with trails leading to panoramic viewpoints like Pic de l'Aigle and Belvédère des Quatre Lacs. You can also find a dedicated path for walking or cycling around Lac de Chalain, and an 18.5 km itinerary around Lac de Saint-Point. For more challenging routes, consider exploring the Mountain Hikes around Entre-Deux-Monts guide.
Several lakes are great for families. Lac de Chalain features three supervised swimming beaches and pedal boat rentals. Lac de Saint-Point is also family-friendly with various water activities. Within the Four Lakes region, Lac d'Ilay and Petit Maclu Lake offer gentle walking paths and natural beauty suitable for all ages.
The region is rich in natural wonders. The Three Lakes Viewpoint offers a panorama of three lakes, highlighting their unique whitish rim due to a chemical phenomenon. Lac de Vouglans is known for its striking emerald green waters. The Four Lakes Region is a Natura 2000 and Ramsar site, boasting diverse ecosystems, while Lac de Bonlieu is a picturesque glacial lake nestled in a forest, overlooked by a rocky ridge.
Swimming is permitted in several lakes. Lac de Vouglans has equipped beaches for swimming. Lac de Chalain offers three supervised swimming beaches. Swimming is also allowed in Lake Narlay and Lac de Saint-Point. In Lac d'Ilay, swimming is generally at one's own risk, and in Lac de Bonlieu, it is generally not permitted to preserve its delicate ecosystem.
Yes, cycling is a popular activity. Lac de Vouglans has scenic cycling routes, notably the Route des Crêtes. You can also cycle around Lac de Chalain on a dedicated path and around Lac de Saint-Point on an 18.5 km itinerary. For more cycling options, check out the Cycling around Entre-Deux-Monts guide, which includes routes like the 'Lake Bonlieu – Petit Maclu Lake loop'.
The lakes are beautiful year-round, but the best time depends on your preferred activities. Summer (June-August) is ideal for swimming and water sports. Spring and autumn offer pleasant temperatures for hiking and cycling, with vibrant foliage. In winter, Lac de Saint-Point can offer opportunities for ice skating amid snowy mountains, weather permitting.
Yes, Lac de Chalain holds historical significance with UNESCO-listed archaeological sites of Neolithic lake dwellings. While these ancient sites are not directly accessible, a detailed reconstruction can be found in Clairvaux-les-Lacs. Additionally, Lac de Saint-Point offers stunning vistas that include Joux Castle in the distance.
Visitors frequently praise the breathtaking panoramas, especially from viewpoints like the Three Lakes Viewpoint. The tranquil beauty of lakes like Lake Narlay and the rich biodiversity of areas like Petit Maclu Lake are also highly appreciated. Many enjoy the easy, shaded paths perfect for cooling off and the diverse range of outdoor activities available.
Fishing is a popular activity in several lakes. Lac de Vouglans is known for species like zander, pike, and perch. You can also fish in Lac de Chalain, Lac de Saint-Point, and Lac de Narlay (for trout and perch). Lac de Bonlieu is also a favored spot for angling.
The lakes and surrounding areas are rich in flora and fauna, particularly in protected zones like the Four Lakes Region, which is a Natura 2000 and Ramsar site. Wetlands around lakes like Petit Maclu Lake are especially rich, with water lilies, reeds, and sedges providing habitat for various animal species. Lac de Saint-Point also boasts rich flora and fauna.
Yes, the region offers mountain biking opportunities. You can find trails that incorporate the lakes, such as the 'Shore of Lac de Narlay – Grand Maclu Lake loop' mentioned in the MTB Trails around Entre-Deux-Monts guide. This guide provides several routes for different difficulty levels.


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