4.3
(191)
908
riders
76
rides
Mountain biking around Saint-Lormel, located in the Côtes-d'Armor department of Brittany, offers diverse terrain for riders. The region features coastal paths with sea views, river valleys along the Arguenon, and routes through forested areas. These natural features provide a mix of flat sections, gentle inclines, and varied surfaces suitable for mountain biking. The landscape transitions from maritime marshes along the Arguenon river to wooded trails and the valleys of the Arguenon and Guébriant.
Last updated: June 21, 2026
4.3
(3)
25
riders
27.1km
01:59
220m
220m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
3.3
(3)
21
riders
43.9km
03:13
450m
450m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.6
(5)
12
riders
32.4km
02:36
370m
370m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3.0
(2)
2
riders
29.6km
01:50
270m
270m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
3.7
(3)
8
riders
34.3km
02:34
310m
310m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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Quite nice here 😉 At least for a little picnic and break, as the coastal path is quite challenging.
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Beautiful panoramic view over two bays and several islands off the coast.
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Also suitable for gravel
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great place ideal for a little family walk
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Ruins of a historic mill that was fed by the Ru de Matignon. The mill is not only a popular hiking destination, but can also be easily incorporated into a mountain bike tour. The trails along the Ru de Matignon or from La Forge are absolutely worthwhile.
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Beautiful single trail down into the stream valley to the Moulin de la Mer. Nice and flowing in the upper part and challenging in the lower part with rough roots and stones.
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At high tide it is the end of the headland, at low tide you can walk further to the next island.
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This river mill owes its name to the fact that for a long time it was the closest mill to the sea. In the Middle Ages, the Lord of Matignon had a "grain mill" built on this site. The population was obliged to have their grain milled there and to pay a fee to the miller. It was supplied with water by a reservoir, now filled, located on a stream that flows into the bay of La Fresnaye at the place called Port-au-Moulin. Upstream, another river mill had been built, the Clos mill, at the place called La Vallée. Downstream, a tidal mill with a dike and seawater dam, the Roche Noire mill, was built in 1869. A windmill, the La Vigne mill, located in Bellevue, took over during droughts. There were therefore four mills in this area. During the Revolution, the Mer mill was auctioned off as national property. Around 1850, René-Marie Durand, a miller, became the owner of this mill. His eldest son had the Roche Noire mill built; his sons and grandchildren also became millers. The mills ceased operations around 1925.
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There are over 80 mountain bike trails around Saint-Lormel, offering a wide range of options for different skill levels. This includes 23 easy routes, 53 moderate routes, and 5 difficult routes, ensuring there's something for every rider.
Mountain biking in Saint-Lormel features diverse terrain, including scenic coastal paths with sea views, trails winding through river valleys along the Arguenon, and routes traversing forested areas. You'll encounter a mix of hard-packed dirt, rural paths, and potentially some wild moors and undergrowth, offering varied surfaces and challenges.
Yes, Saint-Lormel offers several family-friendly mountain bike trails. Many of the 23 easy routes are suitable for families. For example, the Trail – Le Moulin de la Mer Ruins loop from Les Fraiches is an easy 29.6 km route that takes you through wooded areas and past historical ruins, providing an enjoyable ride for various skill levels.
The trails around Saint-Lormel offer opportunities to see a variety of natural features and landmarks. You can ride along the Arguenon river, explore coastal areas with panoramic views like the Pointe du Chevet, or discover historical sites such as the Le Moulin de la Mer Ruins. Many routes also pass by the historic Guildo Castle.
Yes, many mountain bike routes in Saint-Lormel are designed as loops. For instance, the easy View of the Émeraude Coast – Guildo Castle loop from Notre-Dame-du-Guildo offers coastal views and passes by Guildo Castle. Another option is the moderate Montafilan Trail Entrance – Temple of Mars loop from Plancoët, which explores inland areas.
The region of Brittany, including Saint-Lormel, is generally pleasant for mountain biking from spring through autumn. While specific seasonal considerations for Saint-Lormel are not detailed, the varied terrain can become slippery when wet, so drier conditions are often preferred for optimal traction on trails. Coastal paths offer refreshing rides in warmer months.
The mountain bike trails around Saint-Lormel are highly rated by the komoot community, with an average score of 4.3 stars from over 160 reviews. Riders often praise the diverse landscapes, including the coastal views, river valleys, and forest tracks, as well as the variety of routes suitable for different ability levels.
Yes, Saint-Lormel offers challenging options for experienced mountain bikers. There are 5 difficult routes in the area. A notable difficult trail is the Port of Notre-Dame du Guildo – Guildo Castle loop from Plancoët, a 31.7 km path that explores the coastal area and Guildo Castle, providing a demanding ride.
Absolutely. Saint-Lormel is close to scenic coastal areas, providing excellent opportunities for rides with breathtaking sea vistas. The View of the Émeraude Coast – Guildo Castle loop from Notre-Dame-du-Guildo is an easy route that specifically highlights views of the Émeraude Coast.
Yes, several routes integrate historical sites into the ride. The Trail – Le Moulin de la Mer Ruins loop from Les Fraiches takes you directly past the romantic Le Moulin de la Mer Ruins. Additionally, many trails, such as the Guildo Castle – Guildo Castle loop from Le Guildo, pass by the historic Guildo Castle.
The elevation gain varies significantly across the trails, reflecting the diverse terrain. Easy routes like the View of the Émeraude Coast – Guildo Castle loop from Notre-Dame-du-Guildo have around 175 meters of elevation gain. More difficult routes, such as the Port of Notre-Dame du Guildo – Guildo Castle loop from Plancoët, can feature over 360 meters of ascent, providing more strenuous climbs.
Yes, the Arguenon river flows through the commune, creating natural corridors and paths suitable for mountain biking. While specific named routes directly following the entire river are not detailed, the region research indicates that river systems like the Arguenon offer a mix of flat sections and gentle inclines, often integrated into local circuits.


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