4.6
(433)
3,056
hikers
42
hikes
Family friendly hiking trails around Lac de l'Entonnoir are situated in the Jura Mountains, a region characterized by its unique karstic landscape and rich biodiversity. The area features a mosaic of natural environments, including forests, marshes, peat bogs, and wet meadows, surrounding the distinctive funnel-shaped lake. This protected natural environment offers varied terrain for exploration, from gentle lakeside paths to routes traversing woodlands and offering views of the Drugeon river.
Last updated: June 28, 2026
5.0
(1)
5
hikers
9.69km
02:33
90m
90m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(39)
289
hikers
8.00km
02:02
30m
30m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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3
hikers
4.19km
01:05
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
7
hikers
10.3km
02:38
40m
40m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
7
hikers
20.5km
05:22
150m
150m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The Frasne peat bog site is classified as a regional nature reserve. It extends over more than 192 hectares. This unique natural environment can be discovered by walking along a landscaped path covered with wooden slats. This offers the double advantage of discovering both the bog of the marshes and the wooded bog, and of preserving this fragile site.
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This small pond is a real haven of peace, next to an equally peaceful town. It is an ideal place to stop, refuel and contemplate the reflections of clouds or trees in the water. Ornithology enthusiasts, get your cameras!
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Here there is an information panel that provides information on the ecosystem of the marsh. There are also superb views of the vegetation, ideal for nature lovers. It is a landscape that constantly changes with the seasons and invites you to return.
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Picturesque lake directly at the village with countless water lilies.
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There are over 30 hiking routes around Lac de l'Entonnoir, with 10 specifically rated as easy, making them ideal for families. These trails offer a wonderful opportunity to explore the unique natural environment of the Jura Mountains.
The area is a designated Sensitive Natural Area and a Wetland of World Importance, boasting exceptional biodiversity. You'll encounter diverse habitats including forests, marshes, wet meadows, and peat bogs. Keep an eye out for various birds, insects, and amphibians, especially from spring onwards. The lake itself is a fascinating karstic phenomenon, meaning its water levels can change dramatically, offering a unique natural spectacle.
Yes, the 'Sentier de découverte des Rives du Lac de Bouverans' is a particularly easy and family-friendly option. It's about 2.2 km long and takes around 40-45 minutes, featuring interpretive panels and sound points to engage younger explorers. While some parts of the wider area have developed walkways on stilts, always check specific trail conditions for stroller accessibility.
The komoot community highly rates the trails around Lac de l'Entonnoir, with an average score of 4.6 stars from over 400 ratings. Reviewers often praise the serene natural beauty, the well-maintained discovery trails with educational elements, and the chance to observe diverse wildlife in a protected environment. The unique karstic nature of the lake also fascinates many visitors.
Absolutely. Many trails are designed as loops, perfect for a family outing without retracing your steps. For example, the Frasne Peat Bogs Boardwalk loop from Réserve naturelle des tourbières de Frasne-Bouverans is an easy, shorter circular option. For a slightly longer adventure, consider the Étang de la Rivière-Drugeon loop from Bouverans.
The area around Lac de l'Entonnoir and nearby villages like Bouverans and Frasne are generally well-equipped for visitors. You'll find designated parking areas close to the trailheads, especially for popular routes like the discovery trail. It's always a good idea to check specific starting points for parking availability before your visit.
While the area is a Sensitive Natural Area with rich biodiversity, dogs are generally permitted on trails, but it's crucial to keep them on a leash to protect the local wildlife and ensure a pleasant experience for all visitors. Always respect local signage regarding pet regulations.
Spring and summer are particularly wonderful for family hikes, as the area's exceptional biodiversity comes alive with numerous birds, insects, and plants. The interpretive panels and observation decks are also best enjoyed in warmer weather. Autumn offers beautiful foliage. In winter, the lake can freeze, transforming into an open-air ice rink, but caution is advised regarding ice thickness.
Yes, the site is designed for nature observation. There's a dedicated observation deck with a reading table and riddle terminals, as well as a wildlife observatory. For panoramic views, the Châtel Véron viewpoint (Belvédère de Châtel Véron) offers breathtaking vistas of the lake, the Varot marsh, the peat bogs, and the meandering Drugeon river. While the lakeside path is generally accessible, the viewpoint trail might be less suitable for those with disabilities.
Absolutely! The discovery trail around the lake features 40 educational panels and markers, providing engaging information about the lake and its ecosystem. There are also riddle terminals at the observation deck and sound terminals to enhance birdwatching, making it an interactive and educational experience for children of all ages.
For families looking for a longer adventure, the Étang de la Rivière-Drugeon loop from Bouverans is a moderate 9.7 km route that takes around 2 hours and 30 minutes. It offers a great way to immerse yourselves in the diverse landscapes surrounding the lake.


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