4.4
(72)
1,900
runners
18
runs
Jogging around Fontenu offers access to diverse natural features within the Jura department of France. The region is characterized by its serene lake surroundings, notably Lac de Chalain, and the broader, unspoiled natural beauty of the Jura Mountains. Runners can explore a network of trails that traverse forests, pass by cascading waterfalls like the Hérisson waterfalls, and feature mid-mountain contours, providing varied terrain for running.
Last updated: October 9, 2026
4.7
(20)
471
runners
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.4
(9)
259
runners
13.6km
01:32
230m
230m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

104
runners
5.06km
00:33
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
64
runners
5.51km
00:34
20m
20m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
30
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Small hike of 70 km today starting from Clairvaux, Cogna, Uxelles, Le Saugeot, Bonlieu, camping du lac de Narlay in Le Frasnois, Le Vaudioux, Pillemoine, Loulle, Mont sur Monnet, Fontenu, Doucier, Charcier, Route de la Clouterie below Clairvaux les Lacs for the return.
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An imposing lake, of a remarkable blue!
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View from a higher hiking trail of Lac de Chalain, the largest natural lake in the Jura.
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View of Lac de Chalain from a small hiking trail.
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Beautiful view of the lake, and afterward, we had a lovely swim in the lake. Nice bar with delicious ice cream.
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Beautiful view of Lake Chalain (Lac de Chalain)
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Lake Chalain is a glacial lake (10th largest natural lake in France), where a lakeside city dating from the Neolithic period, classified as a world heritage site, was discovered.*The view from the Fontenu belvedere will reveal its turquoise waters. !
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There are over 20 running routes around Fontenu, offering a variety of distances and difficulty levels. These trails are highly rated by the komoot community, with an average score of 4.3 stars from over 65 reviews.
The terrain around Fontenu is quite diverse. You can expect a mix of serene lake surroundings, particularly around Lac de Chalain, as well as trails winding through forests and featuring mid-mountain contours. Some routes, like the Lac de Chalain return loop – Beach loop from Marigny, offer varied terrain, while others might be primarily on paved surfaces near the lake.
Yes, Fontenu offers running routes suitable for various fitness levels. You'll find easy loops, such as the Running loop from Fontenu, which is 4.4 km long, as well as more challenging runs like the Lac de Chalain return loop – Beach loop from Marigny, which is a 15.4 km difficult trail.
Fontenu's running routes are rich with natural beauty. You can enjoy extensive lake views, especially around Lac de Chalain. The region is also known for its impressive waterfalls, such as the dramatic Hérisson Waterfalls, Fan Waterfall, and Saut Girard Waterfall. Other highlights include Petit Maclu Lake and Lake Ilay.
Absolutely! Many routes offer breathtaking views. For instance, the Trail with a view of the lake – View of Lac de Chalain loop from Fontenu provides panoramic vistas of Lac de Chalain. You can also find stunning perspectives from the Pic de l'Aigle and the Three Lakes Viewpoint.
While specific parking details for each route are best checked on the individual tour pages, the presence of popular starting points like Fontenu and Marigny, especially around Lac de Chalain, suggests that parking facilities are generally available to accommodate visitors accessing these trails.
The Jura region, where Fontenu is located, offers excellent conditions for outdoor activities throughout much of the year. Spring and autumn provide pleasant temperatures and vibrant scenery. Summer is also popular, especially around the lakes. While winter running is possible, be prepared for colder conditions and potentially snowy or icy trails, particularly at higher elevations.
Yes, many routes around Fontenu are suitable for families, especially those looking for an active outing. Shorter, easier loops like the Lake Chalain loop from Fontenu (5.3 km) are great options for families with children, offering scenic surroundings without excessive difficulty.
The Jura region is generally welcoming to outdoor enthusiasts and their canine companions. However, it's always recommended to check specific trail regulations or local signage regarding dogs, especially in nature reserves or protected areas. Keeping dogs on a leash is usually a good practice to protect wildlife and ensure a pleasant experience for all trail users.
The area is highly rated by the komoot community, with an average score of 4.3 stars. Reviewers often praise the diverse natural features, from the serene lake views of Lac de Chalain to the invigorating sounds of cascading waterfalls like the Hérisson. The variety of trails, catering to different skill levels, and the unspoiled natural beauty of the Jura Mountains are frequently highlighted.
Yes, Fontenu offers several excellent circular running routes. For example, the Lake Chalain loop from Fontenu is a popular 5.3 km circular trail, and the Trail with a view of the lake – View of Lac de Chalain loop from Fontenu is a longer 13.5 km loop with panoramic views.


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