4.7
(19)
63
riders
14
rides
Gravel biking around Lac de Narlay offers diverse terrain within France's Jura Mountains, a region known for its glacial lakes and extensive trail networks. The landscape features dense forests, expansive alpine meadows, and limestone cliffs, providing varied backroads and rolling tracks. Lac de Narlay is one of four interconnected glacial lakes, contributing to a picturesque plateau ideal for exploration. This area is designated as a Natura 2000 site, preserving its natural heritage.
Last updated: July 2, 2026
4.2
(6)
7
riders
10.6km
00:35
100m
100m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
21
riders
22.6km
01:31
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(3)
12
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.3
(7)
14
riders
12.1km
00:39
120m
120m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5
riders
66.3km
04:35
1,120m
1,120m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Cool passage, definitely take a lamp.
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Small, rocky stretch of beach that you can climb down to, as well as good views of Lac Le Grand Maclu.
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Boat mooring with wooden dock for fishing boats at Lac de Narlay.
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The Bief de la Ruine waterfall is located in the spectacular Malvaux Gorge. One of the most astonishing features of this waterfall is the fact that it only comes alive after heavy rainfall or during snowmelt. When it dries, it gives way to the spectacle of the carved stone, revealing the "Creux des Joyaux," a natural cave where the water swirls with varying degrees of vigor, polishing a multitude of limestone pebbles thanks to the force of its current.
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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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waterfalls don't always flow
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There are over 20 gravel bike routes to explore around Lac de Narlay, offering a variety of experiences through the Jura Mountains' unique landscape. These trails are highly rated by the komoot community, with an average score of 4.7 stars.
The region around Lac de Narlay offers diverse terrain, including dense forests, alpine meadows, and impressive limestone cliffs. You'll find a mix of quiet backroads, rolling tracks, and paths connecting the glacial lakes, providing a visually rich and varied backdrop for your rides.
Yes, there are several options suitable for beginners or families. For an easy introduction to the area's beauty, consider the Grand Maclu Lake – Shore of Lac de Narlay loop from Le Frasnois. This 10.6 km route explores the shores of two glacial lakes and is generally completed in under an hour.
Absolutely. For those seeking a greater challenge, there are 14 difficult routes in the area. A notable option is the Chapelle-des-Bois – Chapelle-des-Bois loop from Gare de Saint-Laurent-en-Grandvaux, which spans over 74 km and features significant elevation gains, taking you through the more rugged parts of the Jura Mountains.
Many of the gravel bike trails around Lac de Narlay are designed as loops, allowing you to start and finish at the same point. For example, the Shore of Lac de Narlay – Grand Maclu Lake loop from La Chaux-du-Dombief is a moderate 22.6 km circular path that connects various natural features around the lakes.
The region is rich with panoramic views. Key viewpoints like Pic de l'Aigle (993 meters) and Belvédère des Quatre Lacs offer majestic vistas of Lac de Narlay, Lac d'Ilay, and the Maclu lakes. The Shore of Lac de Narlay – View of Lac de Narlay loop from La Chaux-du-Dombief is a 38.8 km trail specifically designed to showcase these stunning views.
While not directly on the immediate lake loops, the famous Cascades du Hérisson, a series of seven stunning waterfalls, are located nearby. These can be accessed by bike or on foot, offering another natural attraction to explore in conjunction with your gravel biking adventure.
Yes, Lac de Narlay is part of a picturesque plateau featuring four interconnected glacial lakes: Lac d'Ilay, Petit Maclu, and Grand Maclu. There's a larger 12-kilometer trail network that links these 'four lakes,' allowing for extended rides and diverse scenery beyond just Lac de Narlay.
The Jura Mountains, including the Lac de Narlay area, are generally best for gravel biking during the warmer months, from late spring through early autumn. This period offers pleasant weather conditions and ensures trails are clear of snow and ice, providing optimal riding experiences.
Yes, the region around Lac de Narlay is a Natura 2000 and Ramsar site, designated as 'Peat bogs and lakes of the Jura mountains.' This classification highlights its preserved natural heritage, including unique flora like carnivorous plants in nearby peat bogs. A voluntary tranquility zone is also implemented seasonally to protect local wildlife.
Yes, some routes offer unique points of interest. For instance, the The ghost tunnel! – Shore of Lac de Narlay loop from La Chaux-des-Crotenay is a challenging 37.6 km route that includes a distinctive landmark, providing a memorable experience beyond just the scenic views.


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