4.7
(5)
79
riders
8
rides
Gravel biking around Lac De Bosmeleac offers a network of no traffic gravel bike trails centered around the artificial lake in the Côtes-d'Armor region of Brittany. The landscape is characterized by the 72-hectare lake with its sinuous shape and shaded banks, providing a serene environment. The historic Rigole d'Hilvern, a former artificial waterway, now serves as a greenway with flat, sandy paths, ideal for cycling away from automotive traffic. The area also features the Bosméléac Dam and hints of varied…
Last updated: October 10, 2026
17
riders
62.0km
03:15
360m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
10
riders
32.4km
01:46
240m
240m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.0
(3)
27
riders
133km
07:08
920m
920m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
35.3km
02:00
370m
370m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
21
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Lac De Bosmeleac
Food Truck “Le Pois Bleu”, Stop!!! :)
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magnificent bodies of water and bucolic locks
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A great detour to Saint Aignan, the Les Pêcheries de Guerlédan restaurant is very welcoming, with bike parking, a generous meal and welcome. Crossing the village, you can reach the canal a little further on via the lock.
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You have to carry the bike to cross the dam, but it's worth the view!
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It's cute! Worth a look in passing.
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Riding along the Rigole is one of the most beautiful rides I've ever had. It's at least 50km of gentle downhill on a single trail, wooded and therefore shady. I didn't meet any other cyclists and only met five walkers. The corners of my mouth were constantly almost at my ears, absolutely fantastic!
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Very nice place on this route
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There are currently 8 traffic-free gravel bike trails listed around Lac De Bosmeleac, offering a variety of distances and experiences. These routes are designed to keep you away from car traffic, providing a serene cycling experience.
You can expect a mix of terrain, primarily focusing on the greenways and shaded paths around the lake. The Rigole d'Hilvern Greenway, for instance, offers flat, sandy paths ideal for gravel biking. The routes often follow the sinuous banks of the artificial lake and the upper Oust Valley, providing varied landscapes.
Yes, the area is well-suited for family cycling. The Rigole d'Hilvern Greenway is particularly noted for its flat, car-free paths, making it an excellent choice for families with children or those seeking an easier ride. Many routes incorporate sections of this historic waterway.
You'll encounter several interesting features. The historic Bosméléac Dam and the artificial lake itself are central. The Rigole d'Hilvern Greenway, a former artificial waterway, is a prominent feature. You might also spot the Oust River forming a waterfall after the dam, and the western section of the lake is a vital area for birdwatching, especially for water birds.
The shaded banks around Lac De Bosmeleac offer respite during warmer months, making spring and summer pleasant. However, the area's natural beauty can be enjoyed year-round. The western section of the lake is a significant wintering ground for birds, offering unique birdwatching opportunities during colder seasons.
Absolutely! Many of the routes are designed as loops. For example, the Bosméléac Dam – La Rigole d'Hilvern Greenway loop offers a substantial circular ride, and the La Rigole d'Hilvern Greenway – Bosméléac Dam loop provides a shorter, yet equally scenic, circular option.
The trails around Lac De Bosmeleac range from moderate to difficult. While many sections, especially along the Rigole d'Hilvern Greenway, are relatively flat and easy, some routes incorporate more challenging ascents and descents. For instance, the Saint-Gilles Church – Greenway in Mûr-de-Bretagne loop is rated as difficult due to its elevation changes.
Yes, bike rentals are available in the area, including VTT (mountain bikes) and electric bikes. This makes it convenient for visitors who don't bring their own equipment to enjoy the gravel trails around the lake.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the quiet, traffic-free nature of the trails, the beautiful lake scenery, and the historical context provided by features like the Rigole d'Hilvern and the Bosméléac Dam.
Yes, for experienced riders looking for a longer challenge, the Bosméléac Dam – La Rigole d'Hilvern Greenway loop covers over 60 km with moderate elevation, offering an extensive ride through varied landscapes while largely avoiding traffic.
While specific parking locations are not detailed for every route, the popularity of Lac De Bosmeleac as an outdoor destination suggests that parking facilities are available, particularly near key access points to the lake and greenways. It's advisable to check local signage upon arrival.


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