4.5
(31)
137
riders
21
rides
Gravel biking around Crevin offers a network of routes through varied terrain in the Ille-et-Vilaine department of Brittany. The region features a mix of rural paths, river valleys, woodlands, and rolling landscapes, providing diverse options for gravel cyclists. Routes often follow waterways like the Vilaine River and pass by historical mills, indicating a blend of natural and cultural scenery. The elevation gains across many routes suggest a landscape with undulating hills rather than flat plains.
Last updated: May 22, 2026
4.6
(8)
60
riders
84.2km
04:26
520m
520m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(4)
17
riders
56.0km
03:16
260m
260m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.

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4.8
(4)
24
riders
91.5km
05:05
380m
380m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.8
(8)
20
riders
48.4km
02:51
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
11
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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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Hello everyone, The bridge has been dismantled for two years, undergoing repairs in the navigation workshops. I hope to see it again one day.
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Very pleasant in spring.
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nighttime. A medieval fortress and Renaissance building, Châteaubriant Castle recounts ten centuries of history. In the Middle Ages, Châteaubriant Castle was at the heart of the Marches of Brittany. It served as a stronghold defending the duchy against the Kingdom of France. The keep, ramparts, seigneurial chapel, and the medieval courtyard lodgings still bear witness to the power of this fortress. In the 16th century, the bailey became a residence opening onto the gardens. The castle gardens are open to the public from February to December. Visit maps are available at the reception-shop for a better understanding of the site. A 3D space allows you to discover, with free access, the architectural evolution of the castle, from the 11th century to the present day. From February to December, heritage mediators will accompany you on an in-depth tour of the castle, its keep, and its gardens. During school holidays, family workshops allow parents and children to develop their creativity or spark their curiosity! Opening days: Gardens are open to the public, Wednesday to Sunday: 9am-6pm (February-March and October-December) or 9am-7:30pm (April-September). Prices: - Free entry for those over €0.00 (Free access to the château gardens) - Individual adult rate from €3.00 to €6.00 (Guided tours, free for those on minimum income and special cards) - Individual child rate from €0.00 (Guided tours free for those under 26) - Individual child rate from €0.00 (Guided tours free for those under 26) Child from €4.00 to €8.00 (Family activity) - Adult group rate from €5.00 (From 15 people) Payment methods: Credit cards - Bank and postal checks - Cash Tours Self-guided tours (individual): Yes Guided tours (individual): Yes Average visit duration (individual): 1 hour Self-guided tours (groups): Yes Guided tours on request (groups): Yes Guided tours (groups): Yes Average visit duration (groups): 1 hour Languages: Tour: French, English - Signs: French, English Services: Interactive kiosk - Shop - WiFi Additional information: Groups of 15 people or more are welcome - Pets allowed (Dogs on leashes are allowed in the park.) - Points of interest visible without a tour Access Location: SNCF train station: 0.5 km
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The castle is a self-guided tour. A little tip: there are bike racks inside the castle, just beyond the entrance.
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Inflate the tires properly because flint
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Great area to explore for those who love climbing!
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Crevin offers a good selection of gravel biking routes, with over 30 trails to explore. These routes cater to various skill levels, from moderate to difficult, providing diverse options for gravel cyclists.
While Crevin's gravel biking routes are generally classified as moderate to difficult, some of the moderate trails can be suitable for riders with a reasonable level of fitness. For example, the Boël Mill – Le Boël loop from Guichen - Bourg-des-Comptes is a moderate 29.1-mile (46.9 km) path that explores riverine landscapes.
The gravel bike trails around Crevin feature a varied terrain, including rural paths, river valleys, and rolling landscapes. You'll encounter undulating hills rather than flat plains, with routes often following waterways like the Vilaine River and passing by historical mills.
Yes, Crevin offers several challenging routes for experienced gravel bikers. The La Halte – Pont-Réan loop from Guichen - Bourg-des-Comptes is a difficult 82.9-mile (133.4 km) trail with significant distance and elevation gain. Another demanding option is the Guipry-Messac Mill – Vilaine Loop loop from Guichen - Bourg-des-Comptes, which covers 77.0 miles (123.9 km) through river valleys.
Many of the gravel bike trails around Crevin are designed as loops, allowing you to start and finish at the same point. Examples include the La Halte – Pont-Réan loop and the Boël Mill – Le Boël loop, both starting from Guichen - Bourg-des-Comptes.
The routes often pass by historical sites and natural features. You can explore the historic Boël Mill, a notable landmark along the Vilaine River. Other points of interest in the wider area include the Saint-Maximilien-Kolbé Church and the Uzel Rock.
Given the region's rolling landscapes and river valleys, many routes naturally offer scenic views. Trails following the Vilaine River, such as the Guipry-Messac Mill – Vilaine River loop, provide picturesque vistas of the waterway and surrounding countryside.
The gravel biking routes in Crevin are highly regarded by the komoot community, with an average rating of 4.5 stars from over 90 reviews. Riders often praise the varied terrain, the blend of natural and cultural scenery, and the well-maintained rural paths.
While specific cafe stops are not detailed for every route, many trails pass through or near villages and towns along the way, such as Guichen - Bourg-des-Comptes or Laillé. These locations typically offer opportunities to find cafes or shops for refreshments. The La Halte – Guipry-Messac Mill loop from Laillé, for instance, starts from a town where amenities are available.
The region's climate generally makes spring and autumn ideal for gravel biking, offering pleasant temperatures and vibrant scenery. Summer can also be enjoyable, though it's wise to start earlier in the day to avoid the midday heat. Winters are typically milder but can be wet.
Gravel routes in Crevin vary significantly in length and elevation. Moderate trails like the Boël Mill – Le Boël loop cover around 29 miles (47 km) with about 526 feet (160 meters) of elevation gain. More difficult routes, such as the La Halte – Pont-Réan loop, can extend over 80 miles (130 km) with more than 2,000 feet (600 meters) of climbing.


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