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Saint-Guyomard

The best MTB trails around Saint-Guyomard

4.3

(106)

1,223

riders

56

rides

Mountain biking around Saint-Guyomard offers diverse landscapes within the Morbihan department of Brittany, France. The region features a mix of forests, river valleys, and countryside, providing varied terrain for exploration. A significant portion of the area is covered by the Landes de Lanvaux, offering expansive and rugged landscapes. These natural features contribute to a network of mountain bike trails suitable for different skill levels.

Best mountain bike trails around Saint-Guyomard

  • The most popular mountain bike trail is Callac Cave –…

Last updated: June 20, 2026

4.4

(9)

86

riders

#1.

Château de Trédion – Coëby Menhirs loop from Trédion

49.9km

03:47

470m

470m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy
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Tips from the Community

Mickaël
August 14, 2025, Menhirs de Coëby

At this intersection, you can see three menhirs. A fourth is located about 400m further on the path opposite in the forest.

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This wooded section is certainly the most pleasant in the Molac Forest. The other paths are indeed quite monotonous due to its endless straight lines.

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very beautiful entrance to the castle of Kervilly

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This imposing gateway has marked the entrance to Kerfily Castle since the 17th century. Adorned with a portal and a postern gate, the coats of arms of the castle's past owners' families can be seen on the battlements. The castle is private and serves as a venue for events such as weddings.

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The castle of Trédion which is more a manor than a real castle belonged to the Duchy of Brittany. The Dukes of Brittany came to hunt there because a large forest area surrounds it. Its park designed with its irregular path, its artificial river, its waterfall, its basin, its pond as well as the vegetable garden and the orchard are registered in the pre-inventory of remarkable gardens. Nowadays this private domain can be reserved for weddings or other events like Breton dances.

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Access is unauthorized from October to February inclusive due to hunting, this section nevertheless remains my favorite in the Molac forest.

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Frequently Asked Questions

What kind of terrain can I expect on mountain bike trails around Saint-Guyomard?

The terrain around Saint-Guyomard is diverse, featuring a mix of forests, river valleys, and countryside. A significant portion of the area is covered by the Landes de Lanvaux, offering expansive and rugged landscapes. You'll find varied gradients and natural features suitable for mountain biking.

How many mountain bike trails are available in the Saint-Guyomard area?

There are over 50 mountain bike trails available around Saint-Guyomard, catering to various skill levels. This includes 26 easy routes, 28 moderate routes, and 3 more challenging options.

Are there any circular mountain bike routes in Saint-Guyomard?

Yes, many routes around Saint-Guyomard are designed as loops. For example, the Callac Cave – Coëby Menhirs loop from Le Moulin de Callac is a moderate 26.1-mile circular trail, and the Grotte aux Loups – Coëby Menhirs loop from Saint-Guyomard is another popular 21.9-mile loop.

What are some notable landmarks or points of interest I might see while mountain biking?

You can encounter various points of interest. The region is known for its ancient megalithic structures, such as dolmens and menhirs, which are often found along trails. The Callac Cave – Coëby Menhirs loop from Le Moulin de Callac specifically explores areas with these structures. Additionally, the Historic centre of Malestroit and the 15th-century Château de Brignac are nearby attractions that add cultural interest to the area.

What do other mountain bikers say about the trails in Saint-Guyomard?

The mountain bike trails in Saint-Guyomard are highly rated by the komoot community, with an average score of 4.3 stars from over 100 reviews. Reviewers often praise the varied terrain, the mix of forests and river valleys, and the expansive landscapes of the Landes de Lanvaux.

Are there any beginner-friendly mountain bike trails around Saint-Guyomard?

Yes, Saint-Guyomard offers 26 easy-rated mountain bike routes, providing options for beginners or those looking for a more relaxed ride. These trails typically feature less challenging gradients and smoother paths.

What is the best time of year to go mountain biking in Saint-Guyomard?

The Morbihan department, where Saint-Guyomard is located, is generally suitable for mountain biking across various seasons. Spring and autumn often offer pleasant temperatures and vibrant scenery. While winter riding is possible, checking local weather conditions is always advisable.

Is there parking available near the mountain bike trailheads in Saint-Guyomard?

While specific parking details for every trailhead are not provided, Saint-Guyomard is a commune in a rural region. Parking is generally available in and around villages or designated starting points for outdoor activities. It is recommended to check the individual route details on komoot for specific parking information for your chosen trail.

Are there any mountain bike trails that pass by the Étang du Helfaut?

The Étang du Helfaut is a notable natural feature in the vicinity. While specific routes passing directly by it are not detailed in the guide, the region's network of trails often incorporates natural beauty spots. You may find routes that offer views or access to this pond, adding to the scenic appeal of your ride.

Are permits required for mountain biking on trails in Saint-Guyomard or the Morbihan region?

There is no indication that special permits are required for mountain biking on the general network of trails in Saint-Guyomard or the Morbihan department. However, it's always good practice to respect private property and any local signage regarding trail access.

Can I find mountain bike routes that include historical sites?

Yes, the region around Saint-Guyomard is rich in history. The Saint-Pierre Church – Green Valley loop from Sérent, for instance, winds past historical landmarks. Many trails also pass by ancient megalithic structures, offering a blend of natural beauty and cultural exploration.

What is the longest mountain bike route featured in the Saint-Guyomard area?

One of the longer routes available is the Historic centre of Malestroit – Château de Josselin loop from Sérent, which covers a distance of 47.5 miles (76.4 km) and is rated as moderate.

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