4.4
(107)
934
riders
53
rides
Mountain biking around Lac De Guerledan offers a diverse landscape centered around Brittany's largest artificial lake. The region features undulating terrain with steep-sided valleys, wooded ridges, and extensive areas of moors and gorse, particularly within the vast Quénécan Forest. Riders can expect a mix of water, forest, heathland, and pasture environments, providing varied technical sections and elevation changes. The area is characterized by a "small mountain"-like topography, offering a dynamic backdrop for mountain bike trails.
Last updated: July 4, 2026
3.3
(3)
30
riders
19.4km
02:02
540m
540m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
10
riders
15.1km
01:18
310m
310m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Sign up for free
5.0
(1)
9
riders
10.5km
00:43
110m
110m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
7
riders
19.1km
01:22
260m
260m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
3.7
(7)
45
riders
18.9km
01:23
280m
280m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
The reconstruction is great! But we left some parts in ruins, which preserves the character of an old building.
0
0
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.
0
0
No bikes allowed, dedicated to pedestrians and people with reduced mobility Another bike path between this passage and the cycle path
0
0
View of the old Cistercian abbey from the 12th century.
0
0
beautiful Panorama next to the Ste Trephine chapel
0
0
Very beautiful forest path in the Quénécan forest between the dam and Sordan
0
0
This superb chapel located near Lake Guerlédan is dedicated to Sainte-Tréphine. Fairly recent, it was built between March 1897 and May 1898 on the initiative of Father Ollichon, rector of the parish of Saint-Aignan from 1892 to 1899. Its location in the forest adds to the ambient mysticism.
1
0
There are over 45 mountain bike trails listed on komoot around Lac De Guerledan. The region itself boasts an extensive network of over 300 kilometers of marked trails, catering to all skill levels from beginners to experienced riders.
Yes, Lac De Guerledan offers a good selection of trails for beginners and families. On komoot, you'll find 14 easy-rated mountain bike routes. These trails provide a gentle introduction to the region's diverse landscapes. An example of an easy path is the Brittany wall – Côte de Mûr-de-Bretagne loop from Saint-Aignan, which is 6.7 miles (10.9 km) long.
The terrain around Lac De Guerledan is characterized by its 'small mountain'-like topography, featuring undulating landscapes with steep-sided valleys, wooded ridges, and extensive areas of moors and gorse, especially within the vast Quénécan Forest. You'll encounter a mix of water, forest, heathland, and pasture environments, with trails offering varied technical sections and elevation changes.
Yes, many of the mountain bike trails around Lac De Guerledan are designed as loops, allowing you to start and finish at the same point. For example, the popular View of Lake Guerlédan – Magnificent viewpoint loop from Caurel offers stunning lake views, and the Bon Repos Abbey – Lock No. 138 of Bon Repos loop from Saint-Gelven combines natural beauty with historical sites.
The region is rich in natural and historical attractions. You can ride past the historic Bon Repos Abbey, explore sections of the Nantes-Brest Canal with its lock system, or visit the impressive Guerlédan Dam. The trails also offer numerous scenic viewpoints overlooking the lake, such as those found on the View of Lake Guerlédan loops.
Yes, the dedicated mountain bike base in the Lac De Guerledan area provides services such as bike rentals, including electric-assist bikes. This makes it convenient for visitors who don't bring their own equipment to explore the trails.
The mountain bike routes in Lac De Guerledan are highly rated by the komoot community, with an average score of 4.6 stars from over 80 reviews. Riders often praise the diverse landscapes, the extensive Quénécan Forest, and the variety of trails that cater to different skill levels, from easy rides to challenging technical sections.
Absolutely. Lac De Guerledan offers several challenging routes for experienced mountain bikers. The region's undulating terrain includes significant elevation changes and technical sections, such as rocky portions and singletracks. A notable difficult route is the Magnificent viewpoint – View of Lake Guerlédan loop from Caurel, which spans 55.3 km with over 930m of elevation gain.
Yes, sections of the historic Nantes-Brest Canal run alongside Lac De Guerledan, offering pleasant cycling paths. These towpaths typically have a gravel surface suitable for mountain bikes and provide a flatter alternative to the more undulating forest trails, allowing you to explore the canal's lock system.
The region's diverse landscapes can be enjoyed throughout much of the year. Spring and autumn generally offer pleasant temperatures and vibrant scenery, with the Quénécan Forest displaying beautiful colors. Summer is also popular, though trails might be busier. It's always a good idea to check local weather conditions before heading out.
While specific cafes or pubs directly on every trail are not listed, the villages and towns surrounding Lac De Guerledan, such as Caurel, Saint-Aignan, and Saint-Gelven, offer amenities where you can find places to eat and drink. The beaches and coves like Beau Rivage and Sordan Cove also serve as popular spots for relaxation and often have facilities nearby.
Generally, dogs are welcome on many outdoor trails in France, especially in natural areas like the Quénécan Forest. However, it's always recommended to keep them on a leash, particularly in areas with wildlife or near livestock, and to check for any specific local regulations or signage on individual trails or protected areas.


Browse the best MTB trails in other regions.