Best lakes around La Frasnée are found in the heart of the "Pays des Lacs" in the Jura region of France. La Frasnée is known for its waterfall and "reculée" valley formation. The area offers a diverse natural landscape with several notable lakes in its vicinity. These lakes provide opportunities for exploring the region's geography and natural features.
Last updated: May 10, 2026
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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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Easy path to walk in the shade, very welcome in case of strong heat.
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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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The region around La Frasnée, known as the 'Pays des Lacs', features several notable lakes. These include the Lacs de Clairvaux (Grand and Petit), the Lacs de Maclu (Grand and Petit), Lake Ilay, and Abbey Lake. Each offers unique natural beauty and experiences.
The lakes boast diverse natural features. The Lacs de Clairvaux are known for their crystal-clear waters, sandy beaches, and surrounding forests, supporting significant ecosystems for birds and amphibians. The Lacs de Maclu, part of a Natura 2000 area, offer a serene environment with rich flora like water lilies, reeds, and rushes, providing exceptional habitats for various animal species. Lake Ilay is one of the larger lakes with a small island.
Yes, the Lacs de Clairvaux are a popular destination for swimming, known for their clear water and sandy beaches. However, swimming is prohibited in Lake Bonlieu due to strong currents from underground rivers, and also in Abbey Lake.
The summer months are ideal for enjoying water activities like swimming at the Lacs de Clairvaux. However, the region offers beauty throughout the year for walks and appreciating nature. The water level of the nearby Cascade et reculée de la Frasnée can vary with the seasons and weather, adding to the seasonal charm.
Yes, the Lacs de Clairvaux are popular with families due to their sandy beaches and opportunities for relaxation. Lake Ilay offers an easy walk around its perimeter, suitable for families. The general area provides pleasant walks and opportunities to observe nature.
You can find various hiking trails in the area. For instance, an easy walk is possible around Lake Ilay. The region offers routes ranging from easy to difficult. You can explore more options, including mountain hikes, by visiting the Mountain Hikes around La Frasnée guide.
Absolutely. The area is great for various outdoor activities. You can find numerous running trails, including moderate loops around LakeSide and Lac de Clairvaux-les-Lacs, as detailed in the Running Trails around La Frasnée guide. Cycling is also popular, with routes like the Grand Lac de Clairvaux loop, which you can find in the Cycling around La Frasnée guide.
Yes, near Abbey Lake, you can find the Church of Our Lady of the Nativity of the Abbey and Abbey Site of Grandvaux. This site has a rich history dating back to the 6th century with monastic establishments, and its fortified buildings from the 12th century still have remnants like an old farm building, a presbytery, and the church.
Visitors particularly appreciate the clear water lakes, the diverse natural monuments, and the family-friendly lake areas. The region is valued for its variety of lakes, from larger bodies of water like Lake Ilay to more secluded spots, offering stunning views and peaceful settings throughout the year.
While specific dog-friendly trail information isn't always detailed, many natural areas in France are welcoming to dogs on leash. It's always best to check local signage at specific lake access points or trailheads for any restrictions regarding pets.
Yes, Grand Maclu Lake offers good views, particularly from its small, rocky stretch of beach. The entire 'Pays des Lacs' region is known for its picturesque landscapes, with many spots providing beautiful vistas of the water nestled within the Jura mountains and forests.
Public transport options directly to every lake might be limited, as the region is more rural. It is generally recommended to have a car for convenient access to the various lakes and trailheads. However, local bus services might connect larger towns in the Jura region, from which you might need to arrange further transport.


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