4.6
(39)
2,369
riders
53
rides
Touring cycling around Lac de Vallon offers varied terrain in the Haute-Savoie region of the French Alps. The lake, formed by a landslide in 1943, is set against a backdrop of mountains and forests, in the shadow of Roc d'Enfer. The diverse topography features both valleys and mountain ascents, providing a range of cycling experiences. Emerald waters and nearby cascades add to the scenic charm of the area.
Last updated: July 4, 2026
61
riders
49.7km
03:48
1,310m
1,310m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
21
riders
89.6km
06:45
2,200m
2,200m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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20
riders
14.9km
01:10
400m
400m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
28
riders
21.2km
02:30
930m
930m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
277
riders
48.8km
03:44
1,160m
1,160m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
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A beautiful pass, with beautiful landscapes. It's a must to do in the summer when the road is closed to cars, so you can really enjoy this climb 😉
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Lac de Roy is a small mountain lake with crystal clear water, wedged between green alpine meadows and limestone cliffs. From the shore you have a wide view over the valley of the Giffre, the meadows of Sommand–Praz de Lys and the peaks of the Môle and the Aravis.
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A difficult pass, but a magnificent view as a reward
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There are over 50 touring cycling routes around Lac de Vallon. These include 15 moderate routes and 36 challenging routes, offering diverse options for different fitness levels.
The terrain around Lac de Vallon is varied, featuring mountain passes, forested valleys, and scenic routes around the lake itself. You can expect both moderate climbs and challenging ascents, with significant elevation gains on many routes.
Yes, some routes provide distant views of Mont Blanc on clear days. For instance, the Jambaz Pass – La Ramaz Pass loop from Bellevaux is a challenging 88.79 km route that leads through mountain passes with such vistas.
Lac de Vallon itself is a prominent natural feature, known for its emerald waters and dramatic origin from a landslide. The area is set against the backdrop of the imposing Roc d'Enfer. You can also find natural cascades along routes like the Lac de Vallon – Jambaz Pass loop from Lac de Vallon. The region is part of the Chablais UNESCO Global Geopark, highlighting its rich geological history.
Yes, many routes are designed as loops. A popular challenging option is the Jambaz Pass – Col du Feu loop from Lac de Vallon, which covers 49.7 km with significant elevation gain. Another is the Lac de Vallon – Jambaz Pass loop from Lac de Vallon, a 20.5 km route featuring mountain passes and cascades.
The Haute-Savoie region, including Lac de Vallon, is generally best for touring cycling during the warmer months when mountain passes are clear of snow and weather conditions are more stable. Spring and autumn can also offer pleasant riding with fewer crowds, though some higher elevation routes might still be affected by snow early or late in the season.
While many routes in the immediate Lac de Vallon area are rated difficult due to significant elevation, the broader Haute-Savoie region offers varied terrain. For easier, family-friendly options, look for routes in flatter valley sections or along lake shores in nearby areas, which provide a less strenuous experience.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the stunning mountain scenery, the challenge of the ascents, and the diverse routes that connect lakes, valleys, and mountain ranges, offering a rewarding combination of effort and discovery.
Parking is generally available in the villages and designated areas near popular trailheads around Lac de Vallon and in nearby towns like Bellevaux. It's advisable to check specific starting points for routes for the most convenient parking options.
Yes, there are 15 moderate touring cycling routes in the area. An example is the Col de la Ramaz – La Ramaz Pass loop from Praz de Lys Sommand, a 14.86 km route with a manageable elevation gain of 399 meters.
While direct public transport options specifically for bikes to Lac de Vallon might be limited, the Haute-Savoie region generally supports cycle tourism. It's recommended to check local bus or train services in larger nearby towns for their bike carriage policies, as services can vary by season and route.


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