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France
Auvergne Rhône Alpes
Nantua

Lac de Nantua

The best cycling routes around Lac de Nantua

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.

Best touring cycling routes around Lac de Nantua

  • The most popular touring cycling route is Lac de Nantua – Lake Nantua loop from Port, a 4.1 miles (6.7 km) trail that takes about 29 minutes to complete. This easy route offers scenic views along the lake's edge.
  • Another top favourite among local touring cyclists is Lac de Nantua – Lac de Nantua loop from Le Chateau, an easy 4.6 miles (7.5 km) path. This route provides a gentle ride around the lake, ideal for a relaxed outing.
  • Local touring cyclists also love the Cize Viaduct – Cize-Bolozon Viaduct loop from Nantua, a 37.3 miles (60.1 km) trail leading through varied terrain, often completed in about 4 hours.
  • Touring cycling around Lac de Nantua is defined by its glacial lake, impressive limestone cliffs, and the surrounding Haut-Bugey landscape. The network offers options for different ability levels, from easy lakeside loops to difficult routes with substantial climbs.
  • The routes in Lac de Nantua are highly rated by the komoot community with an average score of 4.3 stars from over 70 reviews. More than 1200 touring cyclists have used komoot to explore Lac de Nantua's varied terrain.

Last updated: June 28, 2026

4.3

(8)

64

riders

#1.

Lac de Nantua – Lake Nantua loop from Port

6.67km

00:29

70m

70m

Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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Easy

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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5.0

(1)

12

riders

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy
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Popular around Lac de Nantua

Running Trails around Lac de Nantua

Hiking around Lac de Nantua

MTB Trails around Lac de Nantua

Road Cycling Routes around Lac de Nantua

Tips from the Community

Nicolas Vergnaud
May 11, 2026, Lac de Nantua

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.

Translated by Google

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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.

Translated by Google

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Remi ⚜️
October 2, 2025, Viaduc de Cize

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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Eric Badin
September 10, 2025, Viaduc de Cize

A must-see on the banks of the Ain

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Lucie
August 27, 2025, Lac de Nantua

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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Frequently Asked Questions

How many touring cycling routes are available around Lac de Nantua?

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.

What kind of terrain can I expect on touring cycling routes around Lac de Nantua?

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.

Are there easy touring cycling routes suitable for families around Lac de Nantua?

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.

What options are there for more challenging touring cycling routes?

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.

Are there any circular touring cycling routes around Lac de Nantua?

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.

What natural features or scenic viewpoints can I discover along the routes?

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.

What do other touring cyclists enjoy most about cycling in Lac de Nantua?

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.

Is it possible to cycle around Lac de Nantua with a dog?

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.

What is the best time of year for touring cycling around Lac de Nantua?

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.

Are there options for parking when visiting Lac de Nantua for cycling?

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.

Can I access touring cycling routes around Lac de Nantua using public transport?

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.

Are there places to eat or stay near the touring cycling routes?

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.

Most popular routes around Lac de Nantua

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