4.6
(25)
266
riders
31
rides
No traffic gravel bike trails around Merléac traverse a rural and hilly commune in Brittany, characterized by undulating terrain with elevations ranging from 114 to 311 meters. The landscape features diverse waterways, including the Oust river and the Rigole d'Hilvern, providing a network of accessible paths. Significant gravel cycling opportunities are found along sections of the Canal de Nantes à Brest and around artificial lakes like Lac de Guerlédan and Lac de Bosméléac. These features create varied environments for gravel biking.
Last updated: July 5, 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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4.0
(2)
14
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
17
riders
52.8km
02:52
380m
380m
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.
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Popular around Merléac
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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You have to carry the bike to cross the dam, but it's worth the view!
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There are 26 traffic-free gravel bike routes available around Merléac. These routes range in difficulty, with 12 considered moderate and 14 classified as difficult, offering a variety of options for different skill levels.
The Merléac region is known for its 'Appalachian-type' relief, meaning you can expect rolling terrain with elevations ranging from 114 to 311 meters. Many routes follow the tranquil banks of the Oust river, the Rigole d'Hilvern, and sections of the Canal de Nantes à Brest, offering a mix of open countryside, wooded sections, and pleasant gravelly surfaces.
The area is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the quiet, traffic-free nature of the trails, the scenic waterways like the Canal de Nantes à Brest, and the diverse landscapes that make for engaging rides.
Yes, several routes offer longer distances. For example, the Bosméléac Dam – La Rigole d'Hilvern Greenway loop from Lac de Bosméléac covers over 61 km, and the Saint-Gilles Church – Greenway in Mûr-de-Bretagne loop from Saint-Gilles-Vieux-Marché is nearly 64 km, providing excellent options for extended rides.
Absolutely. Many of the routes are designed as loops, allowing you to start and finish at the same point. Examples include the Bon-Repos Abbey – Lock No. 138 of Bon Repos loop from Guerlédan and the La Rigole d'Hilvern Greenway – Bosméléac Dam loop from Lac de Bosméléac.
While many routes are rated moderate to difficult, the flat and accessible paths along the Rigole d'Hilvern Greenway are generally suitable for beginners and families. These sections are often shaded and connect to local lakes and picnic areas, providing a tranquil setting for easier rides.
You'll encounter a variety of natural and man-made attractions. Highlights include the impressive Guerlédan Dam and the expansive Lac de Guerlédan. Many routes also follow the historic Canal de Nantes à Brest, passing by locks like Poulhibet lock.
Yes, the region is rich in history. The 14th-century Saint-Jacques Chapel in Saint-Léon, once a stop on the Camino de Santiago, is a significant historical site. You can also explore the area around the Canal de Nantes à Brest, which is steeped in local heritage.
Generally, many outdoor trails in Brittany are dog-friendly, especially those away from protected wildlife areas or private land. It's always best to keep your dog on a leash and ensure they are well-behaved, particularly around other cyclists or livestock. Check local signage for specific restrictions.
Parking is often available near popular starting points for the greenways and canal paths. For routes around Lac de Bosméléac, you'll typically find parking facilities. Similarly, areas along the Canal de Nantes à Brest, such as near locks or villages, usually offer designated parking spots for visitors.
Yes, the region is cyclist-friendly. Notably, at Poulhibet lock, there's a mechanical repair station for self-service bicycles, complete with a pump, tools, and even spare inner tubes. While specific cafes directly on every trail might be limited, many villages along the routes offer places to refuel.
Spring and autumn generally offer the most pleasant conditions for gravel biking in Merléac, with mild temperatures and beautiful scenery. Summer can also be enjoyable, especially on shaded routes, but be prepared for warmer weather. Winter riding is possible, but some paths might be muddier or less maintained.


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