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France
Bourgogne-Franche-Comté
Pontarlier

L'Entonnoir

The best walks and hikes around L'Entonnoir

4.6

(438)

3,065

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74

hikes

Hiking around L'Entonnoir offers diverse trails through a unique natural site in France's Haut-Doubs region, part of the Jura massif. The area is characterized by its distinctive karstic lake, which experiences seasonal water level fluctuations, creating a dynamic landscape. Surrounding the lake is a vast wetland complex, including marshes and peat bogs, alongside forests and wet meadows. These varied habitats provide a rich environment for outdoor activities, with well-developed interpretive trails.

Best hiking trails around L'Entonnoir

  • The most popular hiking…

Last updated: July 6, 2026

5.0

(1)

5

hikers

#1.

Étang de la Rivière-Drugeon loop from Bouverans

9.69km

02:33

90m

90m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

4.7

(39)

289

hikers

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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4.0

(1)

7

hikers

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Tips from the Community

Vincent Reboul
February 23, 2023, Réserve Naturelle des Tourbières de Frasne-Bouverans

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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small pond

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Picturesque lake directly at the village with countless water lilies.

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Frequently Asked Questions

How many hiking trails are available around L'Entonnoir?

There are over 60 hiking routes around L'Entonnoir, catering to various skill levels. You'll find a good mix, with about 25 easy trails, 37 moderate options, and a couple of more challenging routes for experienced hikers.

What is the best time of year to visit L'Entonnoir for hiking?

L'Entonnoir offers unique experiences throughout the year. Spring and autumn are ideal for enjoying the diverse ecosystems and changing landscapes. In winter, when conditions allow for sufficient ice thickness, the lake can transform into a natural ice rink, offering a unique seasonal activity. However, always check local conditions before planning a winter hike.

Are there any family-friendly hiking options around L'Entonnoir?

Yes, L'Entonnoir is very family-friendly. A notable option is the accessible 2 km pedagogical trail, partly on stilts, which allows visitors to get closer to the lake's shores. This trail is equipped with interpretive panels, sound stations, and riddle terminals, making it an engaging experience for all ages. For a slightly longer easy walk, consider the Frasne Peat Bogs Boardwalk loop from Réserve naturelle des tourbières de Frasne-Bouverans, which is 3.3 km long.

Can I bring my dog on the hiking trails in L'Entonnoir?

The L'Entonnoir area, being a protected wetland complex, generally welcomes dogs on trails, but it's crucial to keep them on a leash to protect the rich biodiversity and sensitive habitats. Always check specific trail regulations or signage for any restrictions, especially in designated sensitive natural areas.

Where can I park when visiting L'Entonnoir for a hike?

While specific parking areas aren't detailed in the guide, the presence of well-developed interpretive trails and visitor facilities suggests designated parking is available near the main access points, such as Bouverans or Frasne, which serve as starting points for many routes. Look for signs indicating visitor parking upon arrival.

Are there any circular hiking routes in the L'Entonnoir area?

Yes, many of the trails around L'Entonnoir are circular, offering convenient starting and ending points. For example, the Hiking loop from Frasne is a moderate 7.9 km route, and the Frasne Peat Bogs Boardwalk loop from Frasne is another moderate 8.0 km option.

What unique natural features can I expect to see while hiking around L'Entonnoir?

L'Entonnoir is renowned for its unique karstic lake, which experiences seasonal drainage and refilling, creating a dynamic landscape. You'll also encounter a vast wetland complex, including marshes, wet meadows, and peat bogs, which are part of a protected Ramsar site. These diverse ecosystems support a rich variety of flora and fauna, making every hike a journey through a living landscape.

Are there opportunities for wildlife observation in L'Entonnoir?

Absolutely. The area is an ideal spot for bird watching, with a wooden observatory providing opportunities to observe various water birds like coots, moorhens, and great crested grebes. Sound stations along the pedagogical trail further enhance the experience by allowing visitors to listen to birds and other natural sounds. The site is home to a multitude of animal and plant species, including rare ones.

What do other hikers say about the trails in L'Entonnoir?

The trails in L'Entonnoir are highly rated by the komoot community, with an average score of 4.6 stars from over 400 reviews. Hikers often praise the unique natural features, the well-maintained pedagogical trails, and the opportunities for peaceful immersion in preserved nature.

Are there any viewpoints offering panoramic views of the area?

Yes, for panoramic views, a trail leads uphill to the Belvédère de Châtel Véron. This viewpoint offers breathtaking vistas of the lake, the Varot marsh, the surrounding peat bogs, and the meandering Drugeon river, providing a comprehensive perspective of the region's natural beauty.

What kind of accessibility features are available on the trails?

The pedagogical discovery trail around the lake is designed to be accessible, partly on stilts, allowing visitors to get closer to the water's edge. This trail is equipped with interpretive panels and interactive elements, making it suitable for a wide range of visitors, including families with strollers or those seeking an easier walk.

Are there any historical or cultural points of interest near the hiking routes?

Yes, in addition to the natural wonders, you can find the historic Chapel of Lac de Bouverans overlooking the lake. This adds a cultural and architectural point of interest to the natural surroundings, offering a glimpse into the region's heritage.

What are the typical trail conditions like in L'Entonnoir?

The trails traverse a mosaic of natural environments, including forests, marshes, and prairies. While some paths are well-maintained, like the boardwalks, others might involve varied terrain. Given the wetland nature of the area, some sections can be damp or muddy, especially after rain. Always wear appropriate footwear.

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