5.0
(2)
34
riders
6
rides
Gravel biking around Barrage Du Gast offers diverse terrain, characterized by the 66-hectare Lac du Gast and the surrounding Forêt de Saint-Sever. The region features a mix of unpaved forest roads, paths, and former railway embankments, providing varied experiences for cyclists. Elevation changes are present, with routes navigating through wooded areas and along the lake's edge.
Last updated: June 27, 2026
5.0
(1)
19
riders
114km
07:13
1,520m
1,520m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
25.0km
02:00
420m
420m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4
riders
195km
11:28
1,950m
1,950m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
45.3km
03:31
750m
750m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
1
riders
18.1km
01:17
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Mountain bike park with a pumptrack, restrooms, and a water fountain. Four cross-country loops (green, blue, red, black) and one downhill loop. Well-maintained with a magnificent view.
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The Brouains Bumps: Pumptrack / Jumpline / DH / XCO - for mountain biking enthusiasts. Entry fee required.
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Amazing clock tower. According to the info sign the 'twin towers' are from the 12th C and the Belfry was added at the end of the 15th C. So a very historic spot. The small square in front of the tower is peaceful and hassle-free Use one of the many clean public benches as a base to enjoy your picnic. Afterwards go to the small cafe on the corner, order and pay for your coffee and they will bring it out to your table (a slight upgrade from the bench!). I discreetly ate a clafoutis de cerise with the coffee, and no-one objected.
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mix of towpath and path
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From the top, you have a beautiful view and are, of course, ideal for zipline fans like myself. Unfortunately, during my visit, the activities were only available to employees of a company that had rented the entire facility for the day. If you're planning a visit, it's worth checking in advance whether the park is open. The mini golf course and the summer toboggan run are definitely something for children or those with a fear of heights.
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From up here, you have a beautiful view down into the valley and across the Vire River. If the weather's good, you can even go for a short hike.
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The Barrage Du Gast area offers a diverse mix of terrain, perfect for gravel biking. You'll encounter unpaved forest roads, scenic paths, and sections along former railway embankments. These varied surfaces provide a dynamic riding experience through the region's natural landscapes.
Yes, while some routes are more challenging, there are options for moderate ability levels. For instance, the Stream crossing – Montjoie Wood loop from Saint-Sever is a moderate 25.1 km route, and the Montjoie Wood – Gast Dam loop from Champ-du-Boult is an 18.2 km moderate trail. The area also features picnic and play areas, making it suitable for family outings.
You'll find several interesting sights. The Barrage Du Gast itself, a 15-meter high earthen dam, and the 66-hectare Lac du Gast are central features. Many routes pass through the beautiful Forêt de Saint-Sever. You can also visit the 4-hectare Ornithological Reserve with observation posts, the historic 16th-century Chapelle de l'Ermitage, and a Conservatory Orchard. For more information on the natural heritage, you can visit Pays de Vire Normandie Tourisme.
Absolutely. For those seeking a longer adventure, the Former Railway Embankment – Along the Vire loop from Saint-Sever is a challenging 139.1 km route. Another substantial option is the Needle Rock – Former Railway Embankment loop from Saint-Manvieu-Bocage, which covers 118.3 km.
The gravel biking routes around Barrage Du Gast are highly regarded by the komoot community, holding an average rating of 5.0 stars from 4 reviews. Many of the 40+ visitors praise the varied terrain, which includes forest roads and former railway embankments, and the scenic beauty of the Lac du Gast and Forêt de Saint-Sever.
Yes, many of the gravel routes in the area are designed as loops, allowing you to start and finish at the same point. Examples include the Abbey Church of Saint-Sever – Gast Dam loop from Saint-Sever and the Montjoie Wood – Gast Dam loop from Champ-du-Boult.
The Barrage Du Gast area has a 'Nordic' feel, especially in winter, which attracts various overwintering water birds, offering a unique experience. However, for gravel biking, spring through autumn generally provides the most comfortable weather conditions for exploring the diverse trails and enjoying the natural beauty of the Forêt de Saint-Sever and Lac du Gast.
This route, a challenging 45.4 km loop, offers views of the Gast Dam and takes you past the historic Abbey Church of Saint-Sever, providing both natural beauty and cultural interest during your ride.
There are currently 6 gravel bike trails documented in the Barrage Du Gast region on komoot, offering a range of experiences from moderate to difficult, catering to different skill levels.
Absolutely. Beyond gravel biking, the region is popular for mountain biking, road cycling, hiking, and running. The numerous trails and circuits, along with the beautiful lake and forest, make it an excellent destination for various outdoor pursuits.
The Lac du Gast is a significant natural feature. You can find more detailed information about the lake, its ornithological reserve, and nature discovery trail, including accessibility for people with disabilities, on the Pays de Vire Normandie Tourisme website: Le Lac du Gast.


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