4.4
(324)
1,873
riders
138
rides
Best mountain biking Monterfil offers varied natural landscapes with terrain suitable for outdoor activities. The region features deep valleys, moors adorned with gorse and heather, rocky outcrops, and woods covering a significant portion of the commune. Numerous ponds and small streams flow through steep-sided valleys, contributing to the area's hilly relief. Monterfil is also situated on the margins of the extensive Brocéliande forest, a recognized hub for cycling and mountain biking.
Last updated: May 7, 2026
4.9
(16)
155
riders
41.8km
03:27
460m
460m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.5
(4)
19
riders
29.0km
02:21
320m
320m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.5
(4)
11
riders
41.7km
02:52
350m
350m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4
riders
30.0km
02:19
270m
270m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.0
(1)
8
riders
7.33km
00:35
90m
90m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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As you turn a corner on the path, this unusual rock catches your eye! Pierced at its base, you wonder how that happened!
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At the edge of a path, a stele in memory of the pilot who died when his Crusader crashed in the Tremelin forest.
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Attention!! The GR descending towards the bottom of the Wolf Room is currently strongly discouraged following the recent bad weather I suppose but remains accessible all the same. A small barrier with a warning is located at its base, in the ascending part. Everything remains passable on the descent.... but be careful!!! 😊👍
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Beautiful trail near Lake Tremelin
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Magnificent leisure center with various activities. The tour of the lake is carried out without difficulty by a sandy path for its entire length of approximately 5km.
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Pay attention to the descent from the point of view of the chamber of wolves, more typical of mountain biking than gravel, with a good technical aspect in wet weather.
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A little steep in places but worth it!
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Nice place ! Sporty bike paths, I had to put my foot down at a few steep passages
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There are over 130 mountain bike routes available around Monterfil, catering to various skill levels. The komoot community has highly rated these trails, with an average score of 4.4 stars.
Mountain biking in Monterfil features a diverse landscape, including deeply carved valleys, wooded heathlands with gorse and heather, rocky outcrops, and dense woods. The region is known for its 'purple country' character due to red ocher stone, which contributes to rugged and sometimes technical sections, especially in areas like the Serein Valley.
Yes, Monterfil offers challenging trails. The region's terrain, particularly in the Serein Valley and around the Chambre au Loup, includes abrupt rocks and requires significant physical effort and frequent re-acceleration. One such route is the 35.0 km "Circuit VTT vallée du Serein et chambre au Loup n°3", which is rated as hard.
While many trails are moderate, there are around 20 easy mountain bike routes available in the Monterfil area. These routes often traverse less technical terrain, making them suitable for beginners or those looking for a more relaxed ride. You can find options that explore the numerous ponds and wooded areas without significant elevation changes.
Many trails offer stunning views and natural attractions. You can ride past the dramatic cliffs of the Chambre au Loup Valley, which features formations up to 35 meters high. Other scenic spots include the Lake Trémelin viewpoint and various tranquil ponds like Pont Dom Jean Pond and Étang de l'Étunel.
Yes, many mountain bike trails in Monterfil incorporate lakes and ponds into their routes. For example, the Viewpoint - Chambre au Loup – Lake Trémelin loop from Saint-Péran offers views of Lake Trémelin. Another option is the Stone Slab Slide – Etunel Pond loop from Treffendel, which circles Etunel Pond.
Yes, the majority of mountain bike routes around Monterfil are designed as loops. This allows riders to start and finish at the same point. Examples include the Technical Ramp – Cossinade Singletracks loop from Treffendel and the Carrouet Pond – Blavon Bédeé Park loop from Le Verger.
The region's diverse terrain, including wooded areas and heathlands, makes it enjoyable for mountain biking across multiple seasons. While specific recommendations depend on weather, spring and autumn often offer pleasant temperatures and vibrant scenery. Be aware that some areas might become muddy after heavy rainfall.
For families, the easier routes around Monterfil are generally more suitable. These trails often feature less technical terrain and lower elevation gains, allowing for a more relaxed experience. Look for routes around the various ponds or within the less rugged parts of the Brocéliande forest, which offers a range of skill levels.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 300 reviews. Reviewers often praise the varied natural landscapes, the challenging technical sections for experienced riders, and the proximity to the mythical Brocéliande forest, which adds a unique cultural and natural dimension to the rides.
Generally, mountain biking on marked trails in public forests like Brocéliande and around Monterfil does not require specific permits. However, it's always advisable to respect local signage, stay on designated paths to protect the natural environment, and be mindful of other trail users. For specific regulations regarding the "Circuit VTT vallée du Serein et chambre au Loup n°3", you can check the Velo en France website.
Many mountain bike routes in the Monterfil area, especially those starting from villages like Treffendel or Saint-Péran, typically have designated parking areas nearby. It's common to find parking available at the start points of popular loops, often near local amenities or public spaces.


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