4.3
(66)
1,150
riders
95
rides
Touring cycling around Lac de Nantua offers routes through the heart of Haut-Bugey, characterized by a glacial lake nestled between high limestone cliffs and dense woodlands. The region provides a diverse landscape for cyclists, from flat lakeside paths to challenging routes with significant elevation gain. This area, situated between Lyon and Geneva, features varied terrain suitable for different fitness levels, with the lake itself being a prominent natural feature.
Last updated: June 28, 2026
4.3
(8)
64
riders
6.67km
00:29
70m
70m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
20
riders
60.1km
03:58
800m
800m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
12
riders
56.6km
04:04
1,180m
1,180m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
20.2km
01:47
260m
260m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
riders
16.1km
00:59
100m
100m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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The Lac de Nantua is a superb body of water of 141 hectares. In the heart of the Jura, it offers an ideal setting for practicing a multitude of sports. It is even possible to swim in its waters.
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Nestled in the Semine valley, Saint-Germain-de-Joux offers a preserved natural setting. Don't miss the "marmites de géants" (giant's cauldrons), these rock formations carved by water, accessible from the village.
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pretty small stone viaduct with 2 superimposed lanes, one for cars with 6 arches and one for the train with 11 arches. Atypical.
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pretty little stone viaduct with 2 superimposed lanes, one for cars with 6 arches and one for the train with 11 arches. Atypical.
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A must-see in Ain! It’s a chance to experience some elevation gain!
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Pretty little viaduct which is a real must-see!
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A must-see on the banks of the Ain
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Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical
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There are nearly 100 touring cycling routes around Lac de Nantua, offering a diverse range of options for all skill levels. These include 17 easy routes, 25 moderate routes, and 55 difficult routes.
The terrain around Lac de Nantua varies significantly. You can find easy, flat lakeside paths, such as the 7-kilometer loop around the lake, which is largely reserved for cyclists. More challenging routes venture into the surrounding Haut-Bugey region, featuring substantial elevation gain and winding roads through forests and past impressive limestone cliffs.
Yes, Lac de Nantua is well-suited for family cycling. The 7-kilometer loop around the lake is particularly popular, with approximately 80% of the path reserved for pedestrians and cyclists, ensuring a safe and enjoyable ride. Examples include the Lac de Nantua – Lake Nantua loop from Port and the Lac de Nantua – Lac de Nantua loop from Le Chateau, both offering gentle rides with scenic views.
For experienced cyclists seeking a challenge, the region offers routes with significant elevation gain. The Cize Viaduct – Cize-Bolozon Viaduct loop from Nantua is a difficult 37.3-mile route with nearly 800 meters of ascent. Another demanding option is the Lake Genin – Lake Genin loop from Nantua, covering 56.8 kilometers with over 1100 meters of climbing.
Yes, many touring cycling routes around Lac de Nantua are circular, allowing you to start and end at the same point. The most prominent is the loop directly around Lac de Nantua itself, which is about 7 kilometers long. Other circular routes, like the Camping at Lake Nantua loop from Port, also offer varied distances and difficulties.
The routes around Lac de Nantua offer stunning natural beauty. You'll cycle past the glacial lake itself, framed by high limestone cliffs. Keep an eye out for the Cascade du Palin, a waterfall on the northern side of the lake, where chamois are sometimes spotted. Panoramic viewpoints like the Belvedere de la Colonne and the Barre des Fècles provide expansive 360-degree views of the lake and surrounding mountains.
The area is highly rated by the komoot community, with an average score of 4.3 stars from over 70 reviews. Reviewers often praise the stunning glacial lake scenery, the variety of routes catering to different fitness levels, and the peaceful atmosphere of the Haut-Bugey region.
While many outdoor areas in France are dog-friendly, it's always best to keep your dog on a leash, especially on shared paths or in nature reserves. The 7-kilometer loop around the lake is a popular choice for walks and cycles, but always ensure your dog is well-behaved and that you clean up after them. Check local signage for any specific restrictions.
The best time for touring cycling around Lac de Nantua is generally from spring to autumn. During these seasons, the weather is pleasant, and the natural scenery is at its most vibrant. Summer offers the warmest temperatures, ideal for combining cycling with water activities on the lake, while spring and autumn provide cooler rides and beautiful foliage.
Yes, there are various parking options available around Lac de Nantua, particularly in the town of Nantua and near popular access points to the lake loop. Specific parking areas are often signposted, making it convenient for cyclists to access the routes.
Lac de Nantua is situated between Lyon and Geneva, and while regional public transport options exist, direct access to specific cycling route starting points might require some planning. It's advisable to check local bus or train schedules to Nantua and surrounding villages, and confirm if bikes are permitted on board, especially for longer journeys. For more information on family-friendly cycling in the Ain region, you can visit ain-tourisme.com.
Yes, the town of Nantua, located directly on the lake, offers various amenities including cafes, restaurants, and accommodation options. You'll find places to refuel and relax after your ride, ranging from lakeside eateries to hotels and guesthouses in the town center. The region is known for its local cuisine and hospitality.


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