4.5
(22)
129
riders
7
rides
Gravel biking around Mernel, located in the Ille-et-Vilaine department of Brittany, France, offers access to a diverse landscape. The region features a network of cycle routes, including greenways and towpaths, often utilizing former railway lines. Terrain includes plains, plateaus, and forests, providing varied surfaces for gravel cyclists. The area is characterized by river valleys and woodlands, with some routes passing near the Brocéliande Forest.
Last updated: July 3, 2026
4.5
(14)
92
riders
160km
08:37
810m
810m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
9
riders
50.8km
02:30
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4
riders
21.5km
01:24
190m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
24.5km
01:35
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
3
riders
48.5km
03:11
370m
370m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
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This former watermill, documented as early as 1089, was initially used as a fulling mill before being converted into a flour mill in the 19th century. Its operation ceased on December 31, 1974. Since then, the building has stood as a significant heritage landmark, marking the industrial and riverine history of the Vilaine Valley.
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In 832, Conuvoion, a Breton monk, founded the Abbey of Saint-Sauveur in Redon with the support of the Carolingian Emperor Louis the Pious. A small rural community slowly grew up around the abbey. During the Middle Ages, the town benefited from its location on the Vilaine River, as trade goods could be transported upstream to Redon on ocean-going vessels. There, the goods were transshipped and transported further on inland waterway barges towards Rennes, the capital of Brittany. In the 19th century, Redon experienced another period of prosperity with the construction of the Nantes-Brest Canal. Even today, the old shipowners' houses and the large harbor basin bear witness to its history as a trading port.
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The cycle path along the Vilaine is truly a MUST! It runs directly along the river and has many locks. At each of the locks, there are beautifully maintained guardhouses, some of which are even kitsch. The cycle path doesn't stray more than 10 meters from the river and has a very well-maintained surface. I had the pleasure of following it for over 40 kilometers.
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Redon has managed to retain its quiet, small-town character, despite its intense activity (and traffic). Following the floods of 2024, the campsite is closed. The pedestrian street is pleasant and not overcrowded with shops. Just what you need. A visit to the port is also a pleasant experience.
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Pleasant and shaded on foot or by bike. A few paths // to do on foot or by mountain bike
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Inflate the tires properly because flint
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There are 8 gravel bike trails around Mernel, offering a variety of experiences for different skill levels. These routes are highly rated by the komoot community, with an average score of 4.8 stars.
The terrain around Mernel is diverse, featuring plains, plateaus, and forests. You'll find a network of cycle routes, including greenways and towpaths often utilizing former railway lines, alongside quiet country roads. This provides varied surfaces suitable for gravel cycling, from consistent greenway paths to more rugged forest tracks.
Yes, Mernel offers routes suitable for families. The region's extensive network of greenways and towpaths, which often follow former railway lines, provides consistent and generally flatter surfaces, making them ideal for family outings. While specific 'easy' routes are available, always check the route details for distance and elevation to ensure it matches your family's ability.
Many of the natural areas and trails around Mernel, particularly greenways and quiet country roads, are suitable for cycling with dogs, provided they are well-behaved and kept under control. However, it's always best to check specific local regulations or signage along the route, especially in protected natural areas or private lands, to ensure dogs are permitted.
The routes around Mernel offer glimpses of diverse natural scenery and local landmarks. You might pass by the Guipry-Messac Mill, or enjoy views from the Montserrat Chapel. The broader region is known for river valleys like the Vallée du Canut and the Vilaine River, and is relatively close to the mythical Brocéliande Forest, famous for its ancient natural landmarks.
Yes, several routes around Mernel are designed as loops. For example, the Guipry-Messac Mill – Hidden Chapel loop from Pipriac is a popular moderate route, and the Oyon Valley Greenway – Augan old railway station loop from Guer offers a consistent surface through the Oyon Valley. The Moulin loop from La Chapelle-Bouëxic is another local favorite that takes you through woodlands and countryside.
The Ille-et-Vilaine department, where Mernel is located, generally offers pleasant conditions for cycling from spring through autumn. Spring brings blooming landscapes, while autumn provides beautiful foliage. Summers are typically mild. Winter conditions can vary, but some greenways may still be accessible. Always check local weather forecasts before heading out.
Yes, the gravel biking network around Mernel caters to various skill levels. You'll find 1 easy route, 4 moderate routes, and 3 difficult routes. This range allows both beginners to enjoy gentler greenways and more experienced riders to tackle challenging terrains with greater elevation changes.
While specific parking information for each trail start point isn't always detailed, many routes begin from or pass through villages and towns like Pipriac, Guer, or La Chapelle-Bouëxic, where public parking is generally available. For routes starting in more rural areas, look for designated parking at trailheads or near local amenities.
Many gravel bike routes around Mernel pass through or near small villages and towns. These often have local cafes, bakeries, or small shops where you can stop for refreshments. For example, routes starting from Pipriac or Guer would likely have amenities available. Planning your route with potential stops in mind is recommended.
Mernel benefits from its location within the Ille-et-Vilaine department, which boasts nearly 3,300 km of cycle routes, including green routes and towpaths. This network connects to major regional cycling paths like sections of La Vélodyssée® and La Vélomaritime®, allowing for longer tours and exploration of the broader Brittany region. You can find more information on the main cycling routes in the region on the Ille-et-Vilaine Tourism website.
The gravel biking trails around Mernel are highly rated by the komoot community, with an average score of 4.8 stars from over 5 reviews. Riders often praise the varied terrain, the peaceful atmosphere of the woodlands and river valleys, and the well-maintained greenways and towpaths that make for enjoyable rides.


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