4.4
(315)
966
riders
100
rides
Mountain biking in Brière offers diverse terrain within France's second-largest marshland, characterized by an intricate network of canals, reed beds, and expansive flood-meadows. While generally flat, the region also features forested areas and coastal paths near Mesquer-Quimiac, providing varied landscapes for cycling. The Parc naturel régional de Brière encompasses these features, making it suitable for both relaxed rides and more adventurous mountain biking experiences.
Last updated: October 20, 2026
4.8
(12)
160
riders
38.4km
02:35
310m
310m
Moderate mountain bike ride. Good fitness required.
4.6
(22)
130
riders
56.3km
03:43
210m
210m
Moderate mountain bike ride. Good fitness required.

4.8
(12)
25
riders
35.7km
02:23
100m
100m
Moderate mountain bike ride. Good fitness required.
4.5
(4)
15
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.9
(14)
48
riders
35.8km
02:21
180m
180m
Moderate mountain bike ride. Good fitness required.
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Popular around Brière
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Not necessarily the most suitable beach for swimming, but the view of the rocks and the bouchots is worth the trip.
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Beach where water activities can be practiced. In the distance on the right, the iconic cliffs of Mine d'Or beach can be seen.
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A long sandy beach remarkable for its high ochre cliffs.
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Le Moulin de la Fée is an old flour mill converted into a wind turbine, capable of producing electricity for about 20 households.
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The Lac de la Vallée Mabille, or Lac de Savenay, is a beautiful artificial reservoir that is worth a small detour. By bike, you can easily cycle around the southern part (south of the road) via a wide and well-maintained wooded path. On the other hand, the northern part, wilder and quite rugged, is more suited for hiking than cycling. Crossing at the level of the dam is possible thanks to a footbridge.
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Impressive dolmen. You will find a second dolmen a few dozen meters further, but this one has fallen to the ground.
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Brière offers a wide selection of mountain bike trails, with over 100 routes available. These range from easy, flat paths through the marshlands to more challenging routes with varied terrain.
The trails in Brière cater to various skill levels. You'll find 55 easy routes, 43 moderate routes, and 4 more difficult trails. This variety ensures options for beginners, intermediate riders, and those seeking a greater challenge.
Yes, Brière is well-suited for family mountain biking, especially given its generally flat terrain. Many of the 55 easy routes are ideal for families. For example, the Bois de la Batterie – Menhir du Bois Hoël loop from Saint-Joachim is an easy 28.7 km trail that takes you through pleasant landscapes.
While many trails in natural parks allow dogs, it's always best to check specific local regulations for the Parc naturel régional de Brière, especially concerning protected wildlife areas. If allowed, ensure your dog is well-behaved and kept on a leash to protect the diverse birdlife and other animals in the marshland.
Brière offers diverse landscapes. You'll primarily ride through France's second-largest marshland, characterized by intricate canals, reed beds, and expansive flood-meadows. However, routes also venture into forested areas, and near Mesquer-Quimiac, you can experience exhilarating coastal rides along sandy beaches and dunes.
Yes, Brière features several interesting landmarks. You can visit the Rozé Port and Viewpoint, which offers panoramic views of the marshes. Traditional thatched villages like Kerhinet Village are also significant attractions, showcasing local architecture. The Pierre Constant Site – Brière Marsh Nature Reserve provides opportunities for nature observation.
The most favorable seasons for mountain biking in Brière are generally spring (April to June) and autumn (September to November). During these periods, the weather is mild, making for comfortable riding conditions. The dynamic nature of the marsh also offers a continuously evolving landscape throughout the seasons.
Yes, many of the mountain bike trails in Brière are designed as circular routes, allowing you to start and end at the same point. An example is the moderate Port of La Chaussée Neuve – Gras bridge loop from Le Brunet, which takes you through the marshland.
The Brière region is highly rated by the komoot community, with an average score of 4.4 stars from over 260 reviews. Nearly 1000 mountain bikers have explored the area. Riders often praise the unique marshland scenery, the variety of terrain from flat paths to coastal sections, and the opportunity to combine cycling with birdwatching or visiting charming villages.
Absolutely. Brière is ideal for combining mountain biking with other outdoor activities. You can take boat excursions through the marshes in traditional flat-bottomed boats, enjoy birdwatching, or explore the charming traditional thatched villages like Kerhinet. The region's natural beauty and cultural heritage offer a rich experience beyond just cycling.
Yes, specific areas within the Parc naturel régional de Brière are particularly recommended for mountain biking. Saint-Lyphard offers trails winding through forests and alongside waterways, while Guenrouët features beautiful countryside scenery. For coastal rides, Mesquer-Quimiac provides thrilling opportunities along sandy beaches and dunes.
One of the longer routes you can explore is the moderate Port of La Chaussée Neuve – Grande Brière marshes loop from Saint-Joachim, which covers 55 km and typically takes around 3 hours 49 minutes to complete.
Yes, for riders seeking more technical challenges, Brière does offer routes with singletrack sections. An example is the moderate Super single, a little technical – Creek Downhill/mountain loop from Prinquiau, a 36.1 km trail featuring technical sections.


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