Best lakes around Mont-Sur-Monnet are situated in the Jura department of France, offering access to diverse natural landscapes. The region is characterized by its proximity to the Jura Mountains, providing a setting for various outdoor activities. While Mont-Sur-Monnet itself does not host large lakes, several notable bodies of water are a short distance away. These lakes contribute to the area's natural appeal, featuring clear waters and surrounding forests.
Last updated: May 10, 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 swimming and a variety of water sports, Lac de Chalain is an excellent choice, known for its turquoise waters and three equipped beaches. It offers activities like canoeing, kayaking, sailing, and pedal boating. Lac de Vouglans also provides three sandy beaches with supervised swimming during summer, along with sailing, pedalo, canoe, paddleboard, and water-skiing. Additionally, Lac de Saint-Point has two supervised beaches and allows non-motorized water sports, while Lac Genin offers supervised bathing in a tranquil setting.
Yes, several lakes are suitable for families. Lac de Chalain with its sandy beaches and various water activities is very popular. The Petit Maclu Lake and Lake Ilay are part of the '4 Lakes' area, offering easy, shaded paths perfect for walks with children. Lac Genin also provides a tranquil escape with supervised bathing and an inn nearby.
The '4 Lakes' area, including Lac d'Ilay, Lac de Narlay, Petit Maclu Lake, and Grand Maclu Lake, is ideal for hiking, with signposted trails and panoramic viewpoints like Pic de l'Aigle. Lac de Chalain also has trails around the lake, including a viewpoint at Fontenu. For a longer walk, Lac de Saint-Point features a 23-kilometer path around its perimeter, offering scenic views.
Lac de Chalain is notable for its striking turquoise waters and historical significance, being a UNESCO-listed World Heritage site due to vestiges of a Neolithic lakeside town. The '4 Lakes' area (Lac d'Ilay, Lac de Narlay, Petit Maclu, Grand Maclu) is a protected Natura 2000 and Ramsar site, known for its deep, clear glacial waters and rich biodiversity, including peat bogs. The Three Lakes Viewpoint offers a unique perspective on the whitish rim characteristic of these lakes, a result of natural chemical processes.
Beyond swimming, you can enjoy various activities. Hiking and cycling are popular around Lac de Vouglans, which has over 82 kilometers of trails, and the '4 Lakes' area, perfect for mountain biking. Fishing is excellent at Lac de Vouglans and Lac de Saint-Point. In winter, Lac de Saint-Point can freeze for ice skating, and Lac Genin offers ice skating and snowshoeing. For more detailed routes, explore the hiking, cycling, and gravel biking guides around Mont-Sur-Monnet.
While specific dog-friendly regulations can vary by lake and season, many trails around the lakes are suitable for walks with dogs, provided they are kept on a leash. The natural paths around lakes like Petit Maclu Lake and Lake Ilay are generally good for dog walks. Always check local signage for any restrictions, especially near beaches or protected areas.
The best time to visit largely depends on your preferred activities. Summer (June to August) is ideal for swimming and water sports, with supervised beaches available. Spring and autumn offer pleasant temperatures for hiking and cycling, with beautiful foliage changes. In winter, Lac de Saint-Point and Lac Genin transform, offering opportunities for ice skating and snowshoeing, making them unique destinations during colder months.
Many lakes offer amenities, especially during peak season. Lac de Chalain and Lac de Vouglans have equipped beaches and facilities for water sports rentals. Lac Genin features an inn by the lake for refreshments. The villages surrounding lakes like Lac de Saint-Point also provide local amenities. For specific cafes or restaurants, it's best to check the towns closest to your chosen lake.
Visitors particularly enjoy the breathtaking panoramic views, such as those from the Three Lakes Viewpoint. The charming paths through forests and meadows, like the one around Lake Narlay, are also highly appreciated. Many find the easy, shaded paths around lakes like Petit Maclu Lake perfect for cooling off. The overall natural beauty and variety of activities receive high praise from the komoot community.
While popular lakes can get busy, the '4 Lakes' area, particularly the smaller lakes like Petit Maclu Lake and Grand Maclu Lake, offers a more serene experience within a protected natural environment. Lac Genin, known as the 'Little Canada of Haut-Bugey,' is a smaller mountain lake nestled in a clearing, providing a tranquil escape away from larger crowds.
Yes, circular walks are a great way to experience the lakes. Lac de Saint-Point offers a 23-kilometer path around its perimeter. The '4 Lakes' area has an 11-kilometer loop that takes you around Lac d'Ilay, Lac de Narlay, Petit Maclu, and Grand Maclu, providing diverse landscapes and viewpoints. Lake Ilay also has an easy walk around its perimeter.


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