4.4
(289)
1,260
riders
40
rides
Mountain biking around Le Grand Lac (Ou Etival) offers diverse terrain within the Haut-Jura Regional Natural Park. The region is characterized by glacial lakes, mixed forests, and the undulating landscape of the Jura massif. Situated at nearly 800 meters altitude, the area features wetlands, reed beds, and peat bogs, alongside deciduous forests. Cliffs and viewpoints overlooking the lake provide varied scenery for mountain bike trails.
Last updated: July 11, 2026
5.0
(1)
3
riders
43.1km
03:36
860m
860m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
3
riders
39.3km
03:22
740m
740m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.0
(2)
11
riders
47.5km
03:53
760m
760m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4
riders
56.1km
04:03
860m
860m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4
riders
19.2km
01:15
160m
160m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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The old abbey right on the lake.
0
0
Small, rocky stretch of beach that you can climb down to, as well as good views of Lac Le Grand Maclu.
5
0
Good shoes recommended; it's a climb
0
0
Beautiful tourist site in the region
0
0
Easy path to walk in the shade, very welcome in case of strong heat.
0
0
There are over 35 mountain bike trails available around Le Grand Lac (Ou Etival), offering a diverse range of experiences within the Haut-Jura Regional Natural Park. These include routes for various skill levels, from easy family-friendly loops to more challenging technical paths.
The terrain around Le Grand Lac (Ou Etival) is characterized by the undulating landscape of the Jura massif, featuring mixed forests, glacial lakes, and wetlands. You'll encounter a mix of forested paths, lakeside trails, and some sections with significant elevation changes, particularly on routes that venture further into the Haut-Jura.
Yes, the area offers several easy mountain bike trails perfect for beginners or families. The immediate circuit around Le Grand Lac d'Étival is known for being family-friendly, suitable even for young children. For a slightly longer but still moderate option, consider the Lac d'Étival – View of Lac d'Étival loop from Les Crozets, which covers 21.4 km with moderate elevation.
Absolutely. For experienced riders seeking technical challenges, the Haut-Jura Regional Natural Park, where Le Grand Lac is located, is a renowned destination. Trails like the Shore of Lac de Narlay – Grand Maclu Lake loop from Nanchez offer difficult sections connecting multiple glacial lakes. Additionally, the region hosts parts of the Grande Traversée du Jura (GTJ), which includes demanding climbs and technical descents.
Yes, many of the mountain bike trails in the region are circular, allowing you to start and end at the same point. Examples include the popular LakeSide – Depart loop from Les Piards, a 48 km moderate trail, and the Labaye de grandvaux loop from Les Janiers, which is 31.4 km long.
Mountain biking around Le Grand Lac (Ou Etival) offers stunning natural beauty. You'll encounter the serene glacial lakes themselves, diverse mixed forests, and wetlands with reed beds and peat bogs. There are also various viewpoints, including a belvedere overlooking the lakes and the village of Étival, and cliffs that dominate the landscape, providing picturesque scenery throughout your ride. The Roche Champion Viewpoint – Col de la Savine Trail loop from Nanchez is a great option for panoramic views.
While the region is generally dog-friendly, especially on natural trails, it's always recommended to keep dogs on a leash, particularly in protected areas like the Natura 2000 sites around the lakes, to protect local wildlife. Check specific trail regulations or local signage for any restrictions before heading out with your dog.
The best time for mountain biking around Le Grand Lac (Ou Etival) is typically from spring through autumn. During these seasons, the weather is generally mild, and the trails are clear of snow. Summer offers lush greenery, while autumn provides beautiful foliage. Winter can bring snow, making some trails impassable or requiring specialized equipment.
Yes, the region caters to longer mountain bike tours. Many routes extend beyond the immediate lake area, connecting to the wider network of the Haut-Jura. For example, the Roche Champion Viewpoint – Col de la Savine Trail loop from Nanchez is a difficult 89.3 km route, offering an extensive ride through the varied landscape.
Access to the trails is primarily by car, with various parking options available near trailheads in villages like Étival, Les Piards, or Nanchez. While public transport options might be limited directly to all trail starting points, the main villages often have some bus services. It's advisable to check local transport schedules if you plan to rely on public transport.
The mountain bike trails around Le Grand Lac (Ou Etival) are highly rated by the komoot community, with an average score of 4.3 stars from over 300 reviews. Mountain bikers often praise the diverse scenery, the well-maintained paths, and the variety of routes catering to different skill levels, from serene lakeside loops to challenging climbs in the Jura massif.
The elevation gain on trails around Le Grand Lac (Ou Etival) varies significantly depending on the route's difficulty and length. Easier, family-friendly loops around the lake will have minimal elevation. However, more challenging routes, especially those venturing into the wider Jura massif, can feature substantial climbs. For instance, the Roche Champion Viewpoint – Col de la Savine Trail loop from Nanchez involves over 1200 meters of elevation gain.


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