Best lakes around Châtel-De-Joux are found in the Jura department of France, an area characterized by its diverse aquatic landscapes. This region features several glacial and artificial lakes nestled amidst forests and limestone cliffs. The lakes offer a range of activities, from water sports to hiking, making the area a notable destination for outdoor enthusiasts. Many lakes also hold historical or ecological significance, contributing to the region's natural and cultural appeal.
Last updated: May 11, 2026
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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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On most maps it is called "Lac d’Ilay". The other name probably comes from the small island "Île de la Motte" which is located in the lake.
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The monks of Saint-Claude are credited with establishing a monastery in the 6th century to the southwest of the Abbey Lake on the island known as sur la Motte. Then, probably having fallen into disuse for several centuries, a second monastery succeeded it in the 12th century (1172) built to the northeast of the lake on the current site of the hamlet of l'Abbaye by the canons of the Abbey of Abondance (Augustinians of Haute-Savoie). The status of abbey, served by a particular abbot, remained for a century, until the monastery was the subject of an exchange of goods between the abbot of Abondance and that of Saint-Claude. Once again dependent on the Abbey of Saint-Claude, the Abbey of Grandvaux regained the status of priory. From the fortified buildings of the 12th century, which were accessed by a drawbridge, there remains today an old farm building (called La Joséphine after the former owner of the place), a presbytery and a church, dedicated to Notre-Dame de la Nativité, like that of Abondance. The site has been listed since September 15, 1966. A site to discover through a stroll in 4 scenes, evoking the history of the site.
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Very nice on the way back along the south of the lake
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The tour of the lakes is not of much interest, mainly being wide paths, without much relief, and with no view worthy of the name, including on the lakes (which we see very little, except on the eastern part, which is a shame). The western part is even difficult (we follow the road for 2km...). In short, a walk to forget, except perhaps for a running outing, or a detour via the Eagle peak.
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It is a natural lake of glacial origin with a wild appearance. This lake will surprise you with its turquoise shores on a clear day and its cliffs in the background. It is otherwise known as Lake Ilay. With an area of 72 hectares and an average depth of ten meters, it is fed mainly by Lake Grand Maclu, to which it is connected by a small natural canal approximately 200 meters long. Possible activities: Hiking (tour of the three lakes/four lakes) and mountain biking (tour of the five lakes), horse riding, holiday activities and entertainment... Swimming is tolerated, under your own responsibility.
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Lake L'Abbaye in the Jura Mountains is surrounded by hills and forests. Its clear waters reflect the landscape, offering a peaceful setting for boating, fishing, and hiking. Unfortunately, swimming is not permitted.
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This lake is one of the lesser known in the Jura, but it has its place, with stunning views all year round and the abbey which is its jewel.
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For swimming, Lac de Chalain offers two supervised sandy beaches during high season, along with pedalo and paddle hire. Lac de Vouglans is a hub for water sports like sailing, windsurfing, kitesurfing, canoeing, and paddleboarding, featuring three equipped sandy beaches: Bellecin, La Mercantine, and Le Surchauffant. While swimming is generally permitted in Lake Ilay, it's at your own risk due to strict regulations protecting its fragile ecosystem.
Yes, several lakes are suitable for families. Abbey Lake has a pleasant 6.9 km footpath around it, perfect for a family stroll. Lake Ilay is also considered family-friendly and offers easy walks around its perimeter. The La Fratte Viewpoint, overlooking a turquoise lake, is secured by barriers, making it a safe and accessible spot for families to enjoy panoramic views.
The lakes region boasts diverse natural beauty. Lac de Chalain is known for its striking turquoise waters and imposing limestone cliffs. Lac de Vouglans, the third largest artificial lake in France, features emerald-green waters and the beautiful Cascade de la Pelle waterfall. Lake Ilay, part of the 'Four Lakes' region, is characterized by its wild appearance and a small island. The Pic de l'Aigle offers stunning panoramic views of the entire Jura region and its lakes.
Yes, the region has historical significance. Lac de Chalain is notable for prehistoric pile-dwelling settlements (4000-750 BC), recognized as a UNESCO World Heritage site. Near Abbey Lake, you'll find a 12th-century abbey with a Comté-style steeple, adding a picturesque historical element to the landscape. The Church of Our Lady of the Nativity of the Abbey and Abbey Site of Grandvaux is a listed historical site with origins dating back to a 6th-century monastery.
The area around Châtel-De-Joux offers numerous hiking opportunities. You can find trails around Lac de Vouglans, including an 82 km lakeside path. Lac de Coiselet has trails like the 9 km loop leading to the Pic d'Oliferne. The 'Four Lakes' region, including Lake Ilay, is ideal for nature lovers with tours covering 3, 4, or 5 lakes. For more options, explore the Mountain Hikes around Châtel-De-Joux guide, which includes routes like the 'Fan Waterfall – Le Grand Saut loop'.
Yes, cycling is a popular activity. Lac de Vouglans features an 82 km lakeside path suitable for cycling. The 'Four Lakes' region, encompassing Lake Ilay, also offers mountain biking and cycling trails. For detailed routes, check the Cycling around Châtel-De-Joux guide, which lists routes such as the 'Abbey Lake – Grandvaux Abbey loop'.
Yes, there are several running trails. The Running Trails around Châtel-De-Joux guide features routes like the 'Lake Étival Loop' and the 'Prénovel Peat Bog loop from Nanchez', offering diverse terrain for runners.
The high season for visiting the lakes is typically July and August, when supervised beaches are open at Lac de Chalain and Lac de Vouglans, and water sports are in full swing. However, the region's natural beauty, including its forests and cliffs, makes it appealing for hiking and scenic walks throughout spring and autumn as well.
While specific regulations for each lake vary, many natural areas and trails in the Jura region are dog-friendly, provided dogs are kept on a leash to protect wildlife and other visitors. It's always recommended to check local signage at each lake for specific rules regarding pets.
Visitors frequently praise the stunning natural beauty, particularly the turquoise and emerald waters, and the peaceful atmosphere. The variety of activities, from water sports to hiking, is also highly appreciated. The komoot community has shared over 35 photos and given more than 130 upvotes, highlighting the area's appeal for its scenic views and diverse outdoor experiences.
Fishing is a popular activity in several lakes. Lac de Chalain is known for whitefish and pike. Lac de Vouglans is rich in carp, pike, and zander. Lac de Coiselet is particularly popular for predatory fish like pike, perch, and zander, as well as carp. Always ensure you have the necessary permits and adhere to local fishing regulations.
No, swimming regulations vary by lake. While Lac de Chalain and Lac de Vouglans have supervised beaches in summer, and swimming is generally permitted in Lake Ilay (at your own risk), it is prohibited in some of the other nearby lakes due to ecological protection. For instance, swimming is prohibited in Lake Bonlieu due to strong underwater currents. Always check local signage before entering the water.


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