4.3
(251)
2,668
riders
123
rides
Mountain biking around Brennilis offers a diverse landscape within Brittany's Monts d'Arrée. The region features a varied topography of moors, forests, and rocky ridges, with elevations reaching up to 385 meters. Lac Saint-Michel, an expansive artificial lake, is a central feature, providing routes along its shores. This terrain presents both challenging climbs and descents for mountain bikers.
Last updated: May 14, 2026
5.0
(4)
57
riders
53.1km
04:16
720m
720m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
58
riders
76.8km
06:38
1,250m
1,250m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.1
(13)
47
riders
30.7km
02:27
390m
390m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.7
(7)
37
riders
46.3km
03:40
620m
620m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
50
riders
89.7km
07:50
1,370m
1,370m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Good shoes are necessary and you shouldn't be afraid of small caves.
0
0
The chapel originally dates back to the 17th century. A visit is definitely worth it – the view is simply fantastic!
0
0
Great preparation course at the end of the day
0
0
There are over 110 mountain bike trails around Brennilis, offering a wide range of options for different skill levels. You'll find everything from easier loops to more challenging, technical routes.
The trails around Brennilis cater to various skill levels. You'll find 14 easy routes, 72 moderate routes, and 27 difficult routes. The Monts d'Arrée region offers both accessible loops with gentle views and sporty circuits requiring skilled piloting, with significant elevation changes and technical obstacles on some trails.
Yes, Brennilis offers several family-friendly and beginner-suitable mountain bike trails. For instance, there are accessible loops with relatively low elevation gain, such as a 12 km circuit around Lac Saint-Michel and the Vénec Natural Reserve, which are perfect for those looking for a gentler ride.
The terrain in Brennilis, located within Brittany's Monts d'Arrée, is diverse. You can expect a mix of moors, forests, and rocky ridges. Trails often feature steep climbs, exhilarating descents, wooded valleys, and sharp ridges. Some routes also skirt the shores of Lac Saint-Michel, offering picturesque views.
While mountain biking around Brennilis, you can encounter several notable natural features and landmarks. These include the expansive The Fairies' Pond, the mysterious The Devil's Cave, and the impressive Trembling Rock. Many routes also offer panoramic views from elevated points like Mont Saint-Michel of Brasparts.
Yes, the Gouffre de Huelgoat Waterfall is a notable natural attraction in the vicinity of Brennilis. Some mountain bike routes may pass close to or offer access to this beautiful waterfall, providing a scenic stop during your ride.
Yes, many of the mountain bike trails around Brennilis are designed as circular routes, allowing you to start and end at the same point. An example is the Dolmen of Ty Ar Boudiged – Roc'h Trédudon loop from La Feuillée, which is a moderate 26.4 km trail.
Elevation gains vary significantly depending on the trail. For example, the Saint-Michel Chapel – Mont Saint-Michel of Brasparts loop from La Feuillée involves an ascent of over 700 meters, while the more challenging Huelgoat Lake – Mont Saint-Michel of Brasparts loop from Brennilis features over 1200 meters of climbing. There are also easier loops with much lower elevation gains.
The mountain bike trails around Brennilis are highly rated by the komoot community, with an average score of 4.4 stars from over 200 reviews. Riders often praise the varied terrain, the beautiful natural landscapes of the Monts d'Arrée, and the well-maintained network of trails that cater to different abilities.
Yes, parking is generally available in Brennilis and at common starting points for mountain bike trails within the Monts d'Arrée. Specific parking information can often be found on individual route pages or local tourism websites.
The Monts d'Arrée region is enjoyable for mountain biking throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer is also popular, though trails can be busier. Winter riding is possible, but conditions may be wetter and more challenging, especially on technical sections.
Generally, no specific permits are required for mountain biking on the marked trails in the Monts d'Arrée. However, it's always advisable to respect local regulations, stay on designated paths, and be mindful of private land. For more detailed information on outdoor activities in the region, you can consult resources like Brittany Tourism.


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