4.6
(77)
1,248
riders
17
rides
Mountain biking around Lac du Vallon offers varied terrain set against a backdrop of mountains and forests in the Haute-Savoie department of France. The lake itself was formed by a landslide, creating a distinctive natural feature. The region is characterized by its protected forest environment and the imposing Roc d'Enfer, providing diverse landscapes for mountain bike trails. Riders can expect a mix of ascents and descents through this geologically significant area.
Last updated: July 1, 2026
3.5
(2)
15
riders
15.9km
01:37
740m
740m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(3)
165
riders
71.8km
06:20
2,210m
2,210m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.5
(13)
86
riders
52.6km
03:54
630m
630m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.6
(5)
26
riders
17.2km
01:14
220m
220m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
17
riders
24.0km
02:26
830m
830m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Located just before Alpe d’Huez, the village of Huez combines charm and authenticity. Its peaceful alleyways, traditional houses, and old church contrast with the modernity of the resort that overlooks it.
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The Buclet Lake is a small and tranquil alpine basin located in France, near Le Bourg-d’Oisans, within the suggestive scenery of the Écrins National Park. Immersed among woods and alpine peaks, this body of crystalline water is a popular destination for fishing and for relaxing walks away from the most intense tourist flows. Often confused with the more famous Lac du Bourget due to phonetic similarity, Buclet offers an intimate and silent environment, ideal for observing the reflections of the surrounding mountains. Its strategic position near the great alpine passes makes it a perfect stopping point for hikers and cyclists exploring the French Alps.
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The most beautiful hill to climb in these areas.
12
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There are no crowds here, just you, the mountain, the wind, and the sensation of pedaling on one of the remote peaks of the French Alps. The summit, at almost 2,000 meters, offers a 360° panorama that erases fatigue and ignites the cycling spirit.
4
0
Access to the waterfall prohibited following a landslide
0
0
A great monument at the Tour de France.
2
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An iconic climb ridden countless times in the Tour de France.
13
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Stage to take a photo when you get to the top.
11
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There are over 10 mountain bike trails around Lac du Vallon listed on komoot, offering a variety of experiences. The region features a mix of moderate and difficult routes, with 4 moderate and 9 difficult trails to explore.
The best time for mountain biking around Lac du Vallon is generally from spring through autumn. During these seasons, trails are typically clear of snow, and the weather is more favorable for riding. Winter activities like snowshoeing and dog sledding are popular in the surrounding mountains during colder months, suggesting trails might be inaccessible for biking then.
While many trails in the immediate area are rated moderate to difficult, the region offers diverse terrain. For families, it's advisable to look for routes with less elevation gain and shorter distances. The area around the lake itself has gentle grassy areas and a 'mountain of ropes' play area, suggesting a generally family-friendly environment, though specific easy bike trails for very young children might require local inquiry.
The Lac du Vallon area is known for its natural environment, and many outdoor activities are dog-friendly. However, specific regulations for dogs on mountain bike trails can vary. It's always recommended to keep dogs on a leash, especially in protected areas or near wildlife, and to check local signage for any restrictions on specific trails.
Mountain biking around Lac du Vallon offers stunning natural scenery. You'll ride against the backdrop of the towering Roc d'Enfer and alongside the emerald waters of the lake, which was dramatically formed by a landslide. The area is also part of the Chablais UNESCO Global Geopark, highlighting its geological significance. You might also encounter forests and, in the wider region, even panoramas of glaciers.
Yes, the Diomaz waterfall is a notable natural attraction in the vicinity. Several routes, such as Pisse Waterfall – Buclet pond loop from Villard-Notre-Dame and Pisse Waterfall – View of the Vénéon River loop from Le Bourg-d'Oisans, incorporate the 'Pisse Waterfall' in their names, indicating that waterfalls are a feature along some of these trails.
Yes, the medieval Chapelle Saint-Bruno is a point of interest accessible via hiking trails, and potentially some bike routes. The lake itself holds historical intrigue, with ruins of submerged hamlets beneath its surface. These sites offer a glimpse into the region's past amidst your ride.
The mountain bike trails around Lac du Vallon are highly rated by the komoot community, with an average score of 4.4 stars from over 130 reviews. Riders often praise the dramatic, landslide-formed scenery, the imposing Roc d'Enfer, and the protected forest environment that defines the riding experience.
Yes, many of the trails around Lac du Vallon are designed as loops, offering circular routes. Examples include the Pisse Waterfall – Buclet pond loop from Villard-Notre-Dame and the Pisse Waterfall – Buclet Pond loop from Le Bourg-d'Oisans, which allow you to start and finish at the same point.
While the region is well-suited for outdoor activities, specific public transport options directly to mountain biking trailheads around Lac du Vallon may be limited. It's advisable to check local bus schedules or regional transport services for routes connecting to Bellevaux or other nearby villages, which might offer closer access points.
Parking is generally available at key access points around Lac du Vallon, especially near popular trailheads or the lake itself. Look for designated parking areas in villages like Bellevaux or near the lake's amenities, which often serve as starting points for various outdoor activities.
The area around Lac du Vallon, particularly in nearby villages like Bellevaux, offers amenities including cafes and restaurants where you can refuel after your ride. The lake itself has picnic areas, perfect for a packed lunch amidst the scenic views.
For experienced riders seeking a challenge, routes like Pisse Waterfall – Alpe d'Huez loop from La Ville Noire, a 71.6 km trail with significant elevation gain, offer demanding terrain. Another difficult option is View of the Vénéon River – Alpe d'Huez loop from Venosc, spanning 46.6 km with over 1380m of ascent.


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