4.4
(437)
2,032
riders
139
rides
Mountain biking around Réserve naturelle nationale de la baie de Saint-Brieuc offers diverse terrain for riders. The region is characterized by its coastal landscapes, including the expansive bay, estuaries, and surrounding countryside. Riders can expect a mix of paths along the coastline, through wooded areas, and over rolling hills. The natural reserve provides a varied environment for mountain bike trails, from easier coastal loops to more challenging inland routes.
Last updated: July 5, 2026
5.0
(3)
38
riders
28.2km
01:50
210m
210m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
6
riders
19.2km
01:21
180m
180m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

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4.1
(17)
58
riders
47.3km
03:38
480m
480m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(5)
28
riders
50.4km
03:24
510m
510m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.6
(10)
38
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Popular around Réserve naturelle nationale de la baie de Saint-Brieuc
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Our starting point. The house was unfortunately closed.
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From 1905 to 1948, the train made a stop there between Saint-Brieuc and Moncontour. The inhabitants of the Grèves used it frequently to get around and transport goods, particularly bricks produced by the nearby factory. It was called the "Petit train des Côtes-du-Nord", the former name of the department, because there was only 1 m spacing between its rails compared to 1.435 m on a normal track.
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great for a short break
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This is where the boats gather - when we were here, there were no boat owners around - high noon!
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Great stop off for lunch… however, food outlets close between 13:00 - 14:00 or 15:00.
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The Saint-Gobrien Church is one of the few Romanesque buildings in Brittany. Inside, you'll discover over 400 square meters of ancient frescoes, dating from the 12th to the 17th century. A stunning visit, combining spirituality and painted heritage.
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Difficulty finding the start of the hike, so we chose the bay house.
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There are over 130 mountain bike trails in and around the Réserve naturelle nationale de la baie de Saint-Brieuc, offering a wide range of options for different skill levels.
Yes, the area features over 50 easy mountain bike trails. A good option for beginners is the Greves de langueux – Boutdeville Park loop from Langueux, which is 5.3 miles (8.6 km) long and leads through coastal areas and parkland.
Riders can expect diverse terrain, including coastal paths with views of the expansive bay, trails through wooded areas, and routes over rolling hills. The natural reserve provides a varied environment, from easier coastal loops to more challenging inland sections.
While most routes are moderate, there are 6 difficult trails for experienced riders seeking a greater challenge. These routes often feature more significant elevation changes and technical sections.
One of the longer routes available is the Ponts-Neufs Viaduct – Dahouët Harbour loop from Yffiniac, which spans nearly 31 miles (49.6 km) and offers extensive riding through varied landscapes.
Yes, many of the easy trails are suitable for families. The Greves de langueux – Boutdeville Park loop from Langueux is a great choice, offering a relatively short and accessible ride through scenic coastal areas and parkland.
The spring and autumn months generally offer the most pleasant conditions for mountain biking, with milder temperatures and less crowded trails. Summer can also be enjoyable, especially along the coast, but can be busier. Winter riding is possible, but trails may be muddy, and coastal winds can be strong.
Along the trails, you can discover various points of interest. Highlights include the scenic La Grève des Courses, the tranquil Boutdeville Park, and the expansive views from the Pointe du Grouin Viewpoint, offering glimpses of the bay's natural beauty.
Yes, the coastal nature of the reserve means many trails offer excellent viewpoints. The Pointe du Grouin Viewpoint is a notable spot for panoramic views of the bay, and other coastal sections provide stunning vistas.
The trails in Réserve naturelle nationale de la baie de Saint-Brieuc are highly rated by the komoot community, with an average score of 4.5 stars from over 380 reviews. Riders often praise the varied terrain, beautiful coastal scenery, and the well-maintained paths suitable for different skill levels.
Yes, parking is generally available at or near many of the popular trailheads and starting points around the Réserve naturelle nationale de la baie de Saint-Brieuc, particularly in towns like Hillion and Langueux. It's advisable to check specific route details for parking information.
Yes, the towns and villages surrounding the reserve, such as Saint-Brieuc, Hillion, and Langueux, offer various cafes, restaurants, and shops where you can refuel before or after your ride. Some coastal routes may also pass by establishments with refreshments.
Absolutely. Many routes in the area are designed as loops. A popular moderate circular route is the Pont-Neufs Viaduct – Ponts-Neufs Viaduct loop from La Grandville, which covers about 20.6 miles (33.1 km) and offers scenic views.


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