4.6
(1027)
6,597
hikers
297
hikes
Hiking around Trémuson offers diverse landscapes, blending riverine features with agricultural countryside and woodlands. The region is characterized by the Gouët River, which has carved gorges with granite boulders, and the 81-hectare Saint-Barthélémy Lake, formed by the river and featuring a 45-meter-high dam. Trails traverse wooded areas, open fields, and connect natural sites with local villages, providing varied terrain for exploration.
Last updated: June 21, 2026
4.7
(31)
160
hikers
17.5km
04:43
230m
230m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.6
(55)
205
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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5.0
(9)
29
hikers
13.7km
03:39
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(8)
22
hikers
26.9km
07:15
350m
350m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.0
(2)
11
hikers
7.34km
01:59
100m
100m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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On the left of the trail, do not miss the viewpoint of the viaduct. Stay on the same trail until you reach the road. Take the path that runs alongside it on the left. At the fork, continue straight on the grassy path. Go around the playgrounds on the left to reach the library. Take the street on your right. Photo credit: Emmanuel Berthier
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This impressive Neolithic menhir has been knocked down and stands tall. It is 5.9 meters long.
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This path borders the Gouët river, which meanders along the mossy rocks, giving to see magical landscapes. If it has rained recently, the path will be muddy. It is therefore necessary to provide appropriate equipment: boots, walking sticks...
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This 5.90 meter high granite menhir is classified as a historical monument. It was erected in the Neolithic.
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Magnificent walk, forest, river, calm, pleasure for the eyes.
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Quite difficult on certain sections but bucolic
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From the dam you have a great view over the lake and into the valley of the Gouet. You can start great tours around the lake from the nearby hiking car park (up to 2.00 m)!
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There are over 280 hiking routes available around Trémuson, catering to a wide range of preferences and fitness levels. You'll find everything from easy strolls to more challenging, longer excursions.
Yes, Trémuson offers many easy trails perfect for beginners or families. Nearly 150 routes are rated as easy. A great option is the Saint-Barthélémy Dam – Pont Noir South Section loop from La Méaugon, an easy 7.1 km trail that offers pleasant views around the lake and takes less than two hours to complete.
Hiking in Trémuson offers a diverse blend of riverine landscapes, tranquil countryside, and woodlands. You'll encounter the impressive Gouët River, which has carved gorges with unique granite boulders, and the picturesque Saint-Barthélémy Lake, formed by the river. Trails often wind through wooded areas, open fields, and connect natural sites with local villages.
Yes, many of the trails around Trémuson are circular, allowing you to start and end at the same point. For example, the Pont Noir South Section loop from La Méaugon is a popular 7.4 km circular trail that takes you through varied countryside and along the lake.
Trémuson's trails often lead to interesting historical sites. You can explore the industrial remnants of a 20th-century silver-bearing galena mining site along the 'Circuit des Mines'. Other notable points include the ruins of a 12th-century fortified castle at La Roche Suhart and the Moulin du Pont des Isles, the last buckwheat flour mill on the Gouët river. You might also encounter the Parfond du Gouët Viaduct or the Menhir de la Roche Longue.
Yes, the region offers several scenic viewpoints. The Gouët River has carved impressive gorges with rocky escarpments over 120 meters high, providing dramatic vistas. Trails around Saint-Barthélémy Lake also offer picturesque views. For a specific highlight, consider visiting Rocher du Coucou, which is a known viewpoint in the area.
Many trails in Trémuson are suitable for dogs, especially those winding through woodlands and open countryside. However, it's always recommended to keep your dog on a leash, particularly near agricultural areas or protected natural sites like the Saint-Brieuc Bay Nature Reserve, to protect local wildlife and livestock.
The hiking routes in Trémuson are highly rated by the komoot community, with an average score of 4.6 stars from over 900 reviews. Hikers often praise the diverse landscapes, the tranquility of the countryside, and the well-maintained trails around the Gouët River and Saint-Barthélémy Lake. The blend of natural beauty and historical points of interest is also frequently highlighted.
While Trémuson is a rural area, some local bus services might connect to nearby villages. However, for direct access to many trailheads, especially those further into the countryside or around the lake, personal transport is generally more convenient. It's advisable to check local bus schedules for specific routes if you plan to rely on public transport.
Parking is generally available near popular trailheads, especially around Saint-Barthélémy Lake and in the villages that serve as starting points for many routes, such as La Méaugon. Look for designated parking areas or roadside spots where permitted, particularly near the Barrage de Saint-Barthélémy.
Yes, for experienced hikers looking for a longer challenge, Trémuson offers several moderate to difficult routes. An example is the Pont Noir South Section – Saint-Barthélémy Dam loop from La Méaugon, a moderate 17.5 km path that provides extensive views of the Saint-Barthélémy Lake and surrounding woodlands, taking around 5 hours to complete.
Beyond the Gouët River and Saint-Barthélémy Lake, you can explore the Chaos du Gouët Trail, known for its impressive granite boulders. The region is also close to the Saint-Brieuc Bay Nature Reserve, which includes areas like La Grève des Courses, offering coastal natural beauty.


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