4.6
(51)
569
riders
44
rides
Mountain bike trails around Le Sourn offer diverse terrain within the Morbihan department of Brittany, France. The region is characterized by the scenic Blavet Valley, featuring steep cliffs, hills, and a lush environment shaped by the Blavet river and its tributaries. Mountain bikers can expect varied relief, including rural paths, forest trails, and undulating terrain across valleys and streams.
Last updated: October 7, 2026
5.0
(3)
40
riders
40.9km
02:20
350m
350m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(2)
25
riders
36.3km
02:37
400m
400m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

4.5
(2)
28
riders
43.8km
03:05
450m
450m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.6
(5)
21
riders
49.1km
02:48
350m
350m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
8
riders
49.0km
03:36
470m
470m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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The term "basilica," used above by Vincent Reboul, can have two different meanings for places of worship: + First, as an architectural style: In the Roman Empire, basilicas were secular buildings (market halls or courtrooms); the early Christian era partially adopted this architectural style and, for this purpose, also the term "basilica." + Second, "basilica minor" is an honorary title for special places of worship throughout the world (regardless of the aforementioned architectural style), which has been personally awarded by the Pope since the 18th century.
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The chapel is nestled close to the rocks on the other side of the river. It can be reached via hiking trails on the other side.
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This small village of barely 2,000 inhabitants neighbors the town of Pontivy. You find very beautiful chapels and churches within this town.
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This beautiful water town, famous for its Château des Rohans, is located in Argoat. That is to say in the very center of the Breton peninsula. It is a city which has preserved the Napoleonic memory of the great works carried out during the reign of the emperor. The Blavet is experiencing spectacular floods here which have left their mark on the inhabitants. The most recent ones date from January 1995 and February 2014.
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This chapel is so imposing in its dimensions and importance that it is known here as the Basilica. It is a marvel of 15th century architecture which features numerous gargoyles and a 70 meter high bell tower. All in pure Breton granite.
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There are 28 locks which allow navigation between Pontivy and Hennebont. These structures, built in the 19th century, are still very important for the many pleasure boats. The lock keeper moves from one lock to another to allow boats to continue their journey in the Blavet valley.
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There are 28 locks which allow navigation between Pontivy and Hennebont. These structures, built in the 19th century, are still very important to the many pleasure boats that sail here. The lock keeper moves from one lock to another to allow boats to continue their journey in the Blavet valley.
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Missing the first section of 12km (not started recording)
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There are over 40 mountain bike trails available around Le Sourn, offering a wide range of options for different skill levels and preferences. The komoot community has explored these routes over 400 times.
Mountain biking in Le Sourn offers a diverse range of terrain, primarily within the scenic Blavet Valley. You can expect varied relief, including steep cliffs, hills, rural paths, and forest trails. The region is known for its wild moors, undergrowth, and rocky sections, providing a natural and engaging riding experience.
Yes, Le Sourn offers trails suitable for various skill levels. There are 11 easy mountain bike routes, which are often flatter and follow waterways like the Blavet river, making them ideal for beginners or families looking for a more relaxed ride. For example, the Ecluse – Le Divit Lock loop from Pontivy is a moderate route that follows the river, offering a mix of riverside paths and natural scenery.
Yes, many of the mountain bike trails around Le Sourn are designed as loops, allowing you to start and finish at the same point. For instance, the Pontivy – St Patern /Guern loop from Pontivy is a popular moderate loop exploring varied landscapes.
The Blavet Valley itself is a 'jewel case of greenery,' offering picturesque routes with varying elevations that provide views, including glimpses of nearby Pontivy. Trails like the Cascade Lock – Pontivy Castle loop from Pontivy lead through this beautiful valley, showcasing its lush environment and natural features.
Many trails in the Le Sourn area offer opportunities to see historical and natural landmarks. You might encounter sights such as Pontivy Castle, various locks along the Blavet river, and the scenic Canal de Nantes à Brest. The region's valleys and streams also provide beautiful natural scenery.
The region's lush environment and varied terrain make it enjoyable for mountain biking across several seasons. Spring and autumn often provide pleasant temperatures and vibrant scenery. However, due to the presence of wild moors and undergrowth, some paths might be wetter during rainy periods, which can add to the challenge for experienced riders.
Yes, while many routes are moderate, the varied relief, steep cliffs, and undulating terrain across valleys and streams can offer physically demanding circuits. There is at least 1 difficult mountain bike route available, and many of the 29 moderate routes can provide a good challenge, especially those with more elevation gain or technical sections.
While specific parking areas for each trail are not detailed, many routes, such as the Ville Pérot lock – Écluse de la Forêt loop from Pontivy, start from Pontivy. Pontivy, being a larger town nearby, typically offers various parking options from which you can access the trail network. It's advisable to check local parking regulations upon arrival.
The region of Brittany generally welcomes dogs on outdoor trails, provided they are kept under control. While specific dog policies for each mountain bike trail in Le Sourn are not available, it's usually acceptable to bring your dog on natural paths. Always ensure your dog is well-behaved, on a leash where required, and that you clean up after them to respect other users and the environment.
The mountain bike trails around Le Sourn are highly rated by the komoot community, with an average score of 4.6 stars from over 40 reviews. Riders often praise the diverse terrain, the scenic beauty of the Blavet Valley, and the extensive network of rural and forest paths that offer a range of experiences from leisurely rides to more physically demanding circuits.
Yes, for those looking for longer rides, there are several options. For example, the Écluse de la Forêt – Guerlédan Trail loop from Pontivy is a substantial route covering over 85 kilometers, offering an extended exploration of the region's landscapes.


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