Top 20 Lakes in the Jura Mountains
Best lakes in the Jura Mountains are found across this diverse region, spanning parts of France and Switzerland. Characterized by their glacial origins, some are also artificial reservoirs, offering varied landscapes. These bodies of water are set amidst mountains, forests, and peat bogs, providing natural beauty and recreational opportunities. The region's lakes are known for their distinct features, from striking turquoise waters to significant ecological value.
Best lakes in the Jura Mountains
- The most popular lakes is Lac de Joux, a lake that is the largest in the Jura mountains. It is known for its wild beauty and is ideal for water sports.
- Another must-see spot is Étang de la Gruère, a lake and nature reserve. This area is a paradise for nature lovers, offering calm environments and opportunities to observe rising mists over the water.
- Visitors also love Petit Maclu Lake, a lake surrounded by forest. It is part of the protected 4 Lakes region, known for its rich biodiversity.
- Jura Mountains is known for glacial lakes, artificial reservoirs, and lakes surrounded by peat bogs. This variety offers a wide range of natural settings to explore.
- The lakes in the Jura Mountains are appreciated by the komoot community, with more than 500 upvotes and over 380 photos shared.
Last updated: May 26, 2026
Chasseral Summit and Viewpoint
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Étang de la Gruère
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Ermitage Arlesheim Landscape Garden
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Three Lakes Viewpoint
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Lac de Joux
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Klingnau reservoir - observation tower
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It is nice to walk all the way around here. It is very good for walking with children and strollers. A lot of water birds can be observed here. Take a pair of binoculars with you. It is worth it.
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Klingnau Hydroelectric Power Plant and Reservoir
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Klingnau and Koblenz. The power plant is owned by the stock corporation Aarekraftwerk Klingnau AG, based in Klingnau.
The plant was built from 1931 to 1935 about 400 meters above the mouth of the Aare in the Rhine. Thus, the Klingnau power plant with its Klingnauer reservoir is the last barrage of the Aare. The building was heavily criticized during the crisis at that time, as domestic energy demand was already almost 100% covered.
In 2012, the canton of Aargaudie decided to reassign concession for the power plant. Two consortia applied for this. Finally, Axpo AG and AEW Energie AG were awarded the contract. Since 2015, these two companies have been the sole shareholders of the power plant as AG under the name Aarekraftwerk Klingnau AG.
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Petit Maclu Lake
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Located in a Natura 2000 area, the lake offers an exceptional habitat for many animal species. These wetlands are particularly rich: you can see water lilies, reeds, rushes or even sedges.
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Twann/Douanne
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This charming winegrowing village is the perfect starting point for beautiful excursions. Winding lanes, old houses, and fountains characterize this idyllic village, giving it the feel of a medieval town.
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Hagneck Canal Mouth
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Tips from the Community
Beautiful in any weather…
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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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Wonder Lake to cycle around plenty of cafe and different routes you can take.
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For those using public transport, pay close attention to the train timetable. There is one train per hour between Twann and Biel, and no other means of transport. In winter, there are no boats making this journey.
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The Etang de la Gruère nature reserve is a paradise for nature lovers. Opt for a morning hike to enjoy the calm, and to observe the rising mists over the water.
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Douanne, or Twann in German, is a charming wine-growing village nestled among the vineyards on the shores of Lake Biel. Take the time to explore the cobbled streets, sample fresh lake fish, and soak up the village's Mediterranean atmosphere.
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Frequently Asked Questions
What types of lakes can I find in the Jura Mountains?
The Jura Mountains feature a diverse range of lakes, including large glacial lakes like Lac de Saint-Point and Lac de l'Abbaye, artificial reservoirs such as Lac de Vouglans, and smaller lakes surrounded by unique peat bogs like Lac des Rousses. This variety offers distinct natural settings and experiences.
Which lakes are best for swimming and water sports?
For swimming and water sports, consider Lac de Joux, known for its favorable wind conditions and water temperatures up to 24°C, ideal for windsurfing, sailing, and paddleboarding. Lac de Saint-Point offers two supervised beaches, while Lac de Chalain and Lac de Vouglans are also popular for a wide array of water activities including canoeing, kayaking, and water-skiing.
Are there family-friendly lakes in the Jura Mountains?
Yes, many lakes in the Jura Mountains are family-friendly. Lac de Saint-Point has supervised beaches and a 23 km footpath suitable for pleasant walks. Lac de Chalain offers swimming, pedalos, and hiking. Lac de Joux also features beaches and cycling routes around its perimeter, making it great for families. Lac des Rousses provides supervised swimming and a themed trail to explore local flora and fauna.
What hiking opportunities are available around the Jura Mountains lakes?
The Jura Mountains offer extensive hiking opportunities around its lakes. You can find a 23 km circular hike around Lac de Joux, and a similar 23 km footpath around Lac de Saint-Point. Lac de Vouglans boasts over 150 km of signposted footpaths. The 4 Lakes Region, including Petit Maclu Lake, is a hiker's paradise with trails ranging from easy walks to more challenging loops. For more options, explore the Easy hikes in the Jura Mountains guide.
Which lakes offer unique natural or historical features?
Lac de Chalain is notable for its striking turquoise waters and prehistoric pile-dwelling settlements, which are UNESCO World Heritage sites. Lac des Rousses is a Ramsar-certified wetland, recognized for its exceptional biological value and surrounding peat bogs. Lac de l'Abbaye is named after a 12th-century abbey and is surrounded by beautiful lawns. Étang de la Gruère is a nature reserve known for its calm environment and rising mists.
Can I go cycling or mountain biking near the lakes?
Yes, cycling and mountain biking are popular activities. Lac de Joux has an extensive network of cycling routes, including a full loop around the lake. Lac de Vouglans offers over 150 km of mountain biking trails. The 4 Lakes Region also provides mountain biking opportunities. For road cycling, you can find routes like the 'Tour of Lake Neuchâtel' in the Road Cycling Routes in the Jura Mountains guide, and for gravel biking, explore the Gravel biking in the Jura Mountains guide.
What is the best time of year to visit the Jura Mountains lakes?
Summer (June to August) is ideal for swimming and water sports, with water temperatures in lakes like Lac de Joux ranging from 18 to 24°C. Autumn offers stunning landscapes with shimmering colors, particularly around Lac de Saint-Point, making it perfect for peaceful hikes. In winter, Lac de Joux often freezes completely, transforming into Switzerland's largest natural ice rink, and snowshoeing is possible around Lac des Rousses.
Are there any viewpoints offering panoramic views of the lakes?
Yes, several locations provide excellent panoramic views. The Pic de l'Aigle in the 4 Lakes Region offers views over the Hérisson and Grandvaux Valleys, and even Mont Blanc on a clear day. The Moulin lookout near Lac de l'Abbaye also provides picturesque views. Additionally, the Three Lakes Viewpoint offers a breathtaking panorama of three distinct lakes.
What makes the 4 Lakes Region unique?
The 4 Lakes Region, which includes Lac d'Ilay, Lac de Narlay, Petit Maclu, and Grand Maclu, is a protected area known for its rich biodiversity, peatlands, and mountain forests. Perched around 900 meters above sea level, it offers a tranquil, 'Swedish-like' landscape, particularly around Lac des Mortes and Lac Bellefontaine. While swimming is restricted in some areas for preservation, Lac de Narlay permits it, and the region is a popular spot for nature lovers and hikers.
What do visitors enjoy most about the lakes in the Jura Mountains?
Visitors frequently praise the wild beauty and unspoiled nature of lakes like Lac de Joux. The calm environments and opportunities to observe rising mists over the water at places like Étang de la Gruère are also highly appreciated. Many enjoy the extensive networks of cycling and hiking routes, the variety of water sports, and the stunning viewpoints that offer breathtaking panoramas of the diverse lake landscapes.
Are there any artificial lakes or reservoirs in the region?
Yes, Lac de Vouglans is a prominent example, being the third largest artificial reservoir in France. Formed by the Vouglans Dam on the Ain River, it is known for its magnificent emerald green waters and offers extensive opportunities for water sports and hiking along its 35 km length. The impressive dam itself is also a point of interest.
Can I find information on public transport access to the Jura Mountains lakes?
While specific public transport details for each lake vary, the region is generally accessible. For detailed planning, it is recommended to check local transport schedules for the specific lake you wish to visit. For example, villages around Lac de Joux like Le Sentier and Le Pont offer amenities and connections.
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