4.6
(32)
348
riders
32
rides
Gravel biking around Saint-Guen, now part of Guerlédan in Brittany, France, offers diverse landscapes for cyclists. The region is characterized by significant waterways, including the historic Canal de Nantes à Brest and the Rigole d'Hilvern, which provide extensive gravel paths. Terrain features varied elevations, combining flatter sections along water bodies with more challenging ascents through forests and moorlands. The area's natural beauty is centered around the expansive Lac de Guerlédan and its dam.
Last updated: July 4, 2026
4.0
(5)
44
riders
80.3km
04:02
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.6
(5)
34
riders
32.1km
01:58
410m
410m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.

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5.0
(1)
19
riders
54.1km
02:56
410m
410m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
17
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.3
(4)
15
riders
91.0km
04:53
660m
660m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Saint-Guen
magnificent bodies of water and bucolic locks
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New cafe just on the way out of Pontivy owned by a very friendly and helpful gentleman with lots of experience and tips. He will soon have a bike repair station too! Top!
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Here the origin of the path can be seen: it was an old railway. The old station is well maintained.
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The reconstruction is great! But we left some parts in ruins, which preserves the character of an old building.
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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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The Saint-Guen area offers a wide selection of traffic-free gravel bike trails, with 29 routes currently available. These trails cater to various skill levels, ensuring there's something for everyone looking to explore the region by gravel bike.
You can expect diverse terrain, from pleasant gravelly surfaces along historic waterways like the Canal de Nantes à Brest to more challenging ascents through the surrounding countryside. The region combines flat sections, particularly along water bodies, with significant elevation changes, offering both serene rides and exhilarating challenges. Many routes feature the natural beauty of forests and moorlands.
While many routes in the area are rated moderate to difficult, the paths along the Canal de Nantes à Brest are generally more accessible and offer extensive gravel paths suitable for touring. These sections provide a pleasant and safer experience for families, away from traffic.
Yes, many of the natural trails and paths in the Saint-Guen area, especially those along the Canal de Nantes à Brest and around Lac de Guerlédan, are suitable for cycling with dogs, provided they are kept under control. Always ensure your dog is comfortable with the distance and terrain, and check for any specific local regulations or protected areas that might restrict access.
The trails offer access to several interesting landmarks. You can cycle past the impressive Guerlédan Dam, explore the historic Canal de Nantes à Brest with its ingenious lock system, or visit the Bon-Repos Abbey. The renowned Côte de Mûr-de-Bretagne, famous in the cycling world, is also nearby for those seeking a challenge.
Yes, there are several circular routes available. For example, the "Bosméléac Dam – La Rigole d'Hilvern Greenway loop from Saint-Caradec" offers a moderate circular ride, integrating the historic Rigole d'Hilvern. Another option is the "Saint-Gilles Church – Greenway in Mûr-de-Bretagne loop from Saint-Gilles-Vieux-Marché" for a more challenging loop.
Parking is generally available in the towns and villages surrounding the trailheads, such as Saint-Guen, Saint-Caradec, and near popular attractions like Lac de Guerlédan and the Canal de Nantes à Brest. Look for designated parking areas, especially near recreational sites and visitor centers.
While public transport options directly to every trailhead might be limited, regional bus services connect larger towns in Brittany. From these towns, you may be able to cycle to the start of the gravel routes. Planning ahead and checking local bus schedules is recommended for specific access points.
The best time for gravel biking in Saint-Guen is typically from spring to autumn (April to October). During these months, the weather is generally milder and drier, making for more comfortable riding conditions. Autumn offers beautiful foliage, especially around the forests and waterways. Winter can be wet, and some trails might be muddy.
The area is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the serene and meditative riding experience along the Canal de Nantes à Brest, the stunning scenery of Lac de Guerlédan, and the variety of trails that cater to different fitness levels, all while enjoying the tranquility of traffic-free routes.
Yes, for experienced gravel bikers seeking a challenge, routes like the "Cascade Lock loop from Saint-Caradec" offer substantial elevation gains, with over 640 meters of climbing over its 86 km distance. The general terrain around Saint-Guen features varied elevations, including challenging ascents through the surrounding countryside, providing an exhilarating experience.
Yes, you'll find opportunities for refreshments in the villages and towns located along or near the major gravel routes, particularly around Lac de Guerlédan and the Canal de Nantes à Brest. These spots often have cafes, bakeries, or small restaurants where you can refuel during your ride.


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