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France
Bourgogne-Franche-Comté
Saint-Claude

Lac D'Ilay

The best cycling routes around Lac D'Ilay

4.5

(264)

2,539

riders

117

rides

Touring cycling routes around Lac D'Ilay traverse a landscape shaped by glacial activity within the Jura Mountains. The region features a network of interconnected glacial lakes, including Lac d'Ilay, often referred to as Lac de la Motte, characterized by its turquoise waters and surrounding cliffs. Cyclists encounter varied terrain, from rolling hills to more challenging segments, with routes often providing views of dense woodlands and the Hérisson River. This area is part of a protected Natura 2000 and Ramsar site,…

Last updated: October 23, 2026

2

riders

#1.

Lac de la Motte – Le Frasnois loop from Le Frasnois

11.7km

00:49

120m

120m

Easy bike ride. Mostly paved surfaces.

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Easy

Easy bike ride. Mostly paved surfaces.

Easy
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Moderate bike ride. Good fitness required. Mostly paved surfaces.

Moderate

Moderate bike ride. Good fitness required. Mostly paved surfaces.

Moderate

Hard bike ride. Very good fitness required. Mostly paved surfaces.

Hard
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Popular around Lac D'Ilay

Hiking around Lac D'Ilay

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Tips from the Community

jurabeyond
August 6, 2026, Lake Narley in the morning

Lake Narley in the Jura. There is a campsite next to lake beautiful water to swim in and enjoy a drink at the café.

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Very nice outing early in the morning

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Kristian
September 1, 2025, Le Frasnois

Nice little town with some beautiful buildings and a small church in the center.

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Small, privately owned botanical garden that can be visited by appointment.

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Kristian
September 1, 2025, La Fromagerie

Nice little town with a cheese factory and a few restaurants.

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Kristian
September 1, 2025, Lac de Narlay

Boat mooring with wooden dock for fishing boats at Lac de Narlay.

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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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Anita
July 22, 2025, La Fromagerie

It can be busy, but you can sit comfortably and eat tarte myrtilleus in the restaurant next door.

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Frequently Asked Questions

How many touring cycling routes are available around Lac d'Ilay?

There are over 120 touring cycling routes around Lac d'Ilay, offering a wide range of options for different skill levels and preferences. You'll find everything from easy lakeside loops to more challenging mountain trails.

What makes the touring cycling routes around Lac d'Ilay unique?

The routes around Lac d'Ilay are characterized by their stunning glacial lake landscapes, diverse woodlands, and the varied terrain of the Jura Mountains. Cyclists can enjoy picturesque views of the turquoise waters, imposing cliffs, and lush valleys. The area is also a protected Natura 2000 and Ramsar site, ensuring an unspoiled natural environment.

Are there any easy, family-friendly cycling routes around Lac d'Ilay?

Yes, there are several easy routes suitable for families. For instance, the Grand Maclu Lake – Lac de la Motte loop from La Fromagerie is an easy 7.0-mile (11.3 km) path that circles Lac d'Ilay (also known as Lac de la Motte) and the adjacent Grand Maclu Lake, offering scenic lakeside cycling. Another easy option is the Lac de la Motte – Petit Maclu Lake loop from Le Frasnois, a 6.8-mile (10.9 km) trail through the glacial lake landscape.

What is the best time of year to go touring cycling in Lac d'Ilay?

The best time to cycle around Lac d'Ilay is generally from spring through autumn. During these seasons, the weather is more favorable, and the natural beauty of the lakes and forests is at its peak. A voluntary tranquility zone is in place from April 15 to September 15 to protect animal species during breeding season, which also means less disturbance on the trails.

Are there any challenging routes for experienced touring cyclists?

Absolutely. While there are easy routes, the region also offers more challenging options with significant elevation changes. For example, the Scenic Forest Descent – Lac de Narlay loop from Le Frasnois is a difficult 32.1-mile (51.7 km) route with nearly 500 meters of ascent, providing a good test for experienced cyclists.

Can I find circular cycling routes around the lakes?

Yes, many routes around Lac d'Ilay and the surrounding '4 Lakes' are circular, allowing you to start and end at the same point. The Lac du Petit Maclu – Grand Maclu Lake loop from La Chaux-du-Dombief is a popular 7.1-mile (11.4 km) circular route that offers views of two of the region's lakes.

What are some scenic viewpoints or natural features to look out for while cycling?

The region is rich in natural beauty. You can look forward to panoramic views from points like Pic de l'Aigle, which offers breathtaking 360° vistas over the Jura Mountains and the Hérisson Valley. The picturesque Rivière du Hérisson, into which Lac d'Ilay flows, is also famous for its impressive waterfalls, providing another natural highlight.

Is it possible to bring my dog on the cycling trails?

While specific regulations for dogs on cycling trails can vary, the Lac d'Ilay area is a natural environment. It's generally advisable to keep dogs on a leash, especially in protected areas like the Natura 2000 site, to protect local wildlife. Always check local signage for specific restrictions.

What do other cyclists say about touring cycling in Lac d'Ilay?

The touring cycling routes around Lac d'Ilay are highly rated by the komoot community, with an average score of 4.6 stars from over 190 reviews. Cyclists often praise the stunning lake views, the tranquility of the forests, and the variety of terrain suitable for different skill levels.

Are there options for public transport to reach the cycling routes?

While the Jura region has some public transport, direct access to specific trailheads around Lac d'Ilay with bikes might be limited. It's recommended to research local bus services or train connections to nearby towns like Lons-le-Saunier or Saint-Laurent-en-Grandvaux and then plan your cycling route from there, potentially involving a short ride to the lake area.

Where can I park my car when cycling around Lac d'Ilay?

Parking is typically available in the villages surrounding the lakes, such as La Chaux-du-Dombief, Le Frasnois, or near specific campsites like the Narlay Lake Campsite. These locations often serve as convenient starting points for many of the circular routes. Always look for designated parking areas.

Are there other outdoor activities besides cycling around Lac d'Ilay?

Yes, the area is a hub for various outdoor pursuits. Besides cycling, you can enjoy hiking on trails like the 'tour of 3 lakes / 4 lakes,' mountain biking, and even horse riding. While boating is prohibited in Lac d'Ilay, swimming is tolerated at your own risk in designated areas.

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