4.6
(92)
2,088
riders
74
rides
Road cycling routes around Lac D'Ilay traverse a landscape characterized by several interconnected lakes, dense forests, and rolling hills of the Jura region. The terrain features moderate ascents and descents, offering varied cycling experiences. This area is known for its natural water bodies and wooded surroundings, providing a consistent backdrop for road cyclists.
Last updated: May 4, 2026
5.0
(3)
39
riders
25.1km
01:11
340m
340m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
32
riders
45.5km
02:16
670m
660m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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5.0
(2)
17
riders
32.1km
01:30
380m
380m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
4.0
(1)
17
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
12
riders
19.8km
01:02
330m
340m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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The smaller of the two Maclu Lakes, with an easy hiking trail along its shore.
5
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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.
6
0
Easy, shaded path, perfect for cooling off in hot weather.
0
0
Just off the road worth a stop to see all the foot prints.
0
0
Watch out for Ice in the winter, can you find the secret waterfall ?
0
0
On most maps it is called "Lac d’Ilay". The other name probably comes from the small island "Île de la Motte" which is located in the lake.
1
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Narlay Lake, located in the Jura, is a true natural setting surrounded by forests and green hills. This glacial lake, with its clear waters, offers an idyllic setting for a walk or a contemplative break by the water. The paths that surround it allow you to explore its peaceful banks, offering superb views of the Jura mountains and the reflections of the landscape in the lake.
0
0
Very nice on the way back along the south of the lake
1
0
The road cycling routes around Lac D'Ilay offer a varied experience. Out of 89 routes, 46 are considered moderate, featuring rolling hills and some ascents. There are also 36 difficult routes for more experienced riders, and 7 easier options for those seeking a gentler ride.
Yes, there are several routes suitable for beginners. The area features 7 routes classified as easy, which typically involve less elevation gain and shorter distances, making them ideal for those new to road cycling or looking for a relaxed ride.
Route durations vary significantly. For example, the moderate route Lac de la Motte – View of Lac de Narlay loop from Le Frasnois takes about 1 hour 11 minutes to complete. Longer, more challenging routes, like the difficult Col de la Joux – Lake Etival loop from La Chaux-du-Dombief, can take over 3 hours.
The best season for road cycling around Lac D'Ilay is generally from spring through autumn. During these months, the weather is typically mild, and the natural beauty of the interconnected lakes and forests is at its peak. Summer offers warmer temperatures, while spring and autumn provide cooler rides and vibrant foliage.
While some dedicated cyclists may venture out, winter road cycling around Lac D'Ilay can be challenging due to colder temperatures, potential ice, and snow, especially in the higher elevations of the Jura region. Many routes may become less accessible or require specialized equipment. It's advisable to check local weather and road conditions before planning a winter ride.
For families, the easier routes around Lac D'Ilay are a good starting point. These routes often stick to flatter sections near the lakes, providing a safer and more enjoyable experience for all ages. Look for routes with minimal elevation gain and shorter distances.
The region is known for its stunning lake views. Many routes offer panoramic vistas of Lac D'Ilay, Lac de Narlay, and other interconnected lakes. The View of Lac de Narlay – Petit Maclu Lake loop from Le Frasnois is one such route that provides excellent opportunities to enjoy these scenic outlooks.
The Lac D'Ilay area, with its numerous lakes, offers potential spots for wild swimming. While not officially designated, many cyclists enjoy cooling off in the clear waters of the lakes after a ride. Always check local regulations and safety guidelines before swimming in natural bodies of water.
Yes, many of the road cycling routes in the Lac D'Ilay area are designed as loops, allowing you to start and finish at the same point. Examples include the Lac de Narlay – View of Lac de Narlay loop from Le Frasnois and the Petit Maclu Lake – View of Lac de Narlay loop from Le Frasnois, which offer convenient circular journeys through the lake district.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 120 reviews. Reviewers often praise the diverse landscape, including the beautiful interconnected lakes, dense forests, and the undulating hills of the Jura region, which provide a consistent and engaging backdrop for road cyclists.
There are over 80 road cycling routes available around Lac D'Ilay. This extensive network offers a wide range of options for various skill levels and preferences, from shorter, easier loops to more challenging, longer rides with significant elevation changes.


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