4.4
(74)
440
riders
58
rides
Touring cycling routes around Coësmes, located in the Ille-et-Vilaine department of Brittany, France, traverse a tranquil countryside characterized by rural landscapes and a network of cycling paths. The region offers accessible cycling infrastructure, including greenways, which provide serene routes away from motorized traffic. A notable landmark in the area is the La Roche-aux-Fées megalithic site, which can be incorporated into longer regional rides. The terrain generally presents a pleasant environment for touring cyclists.
Last updated: June 20, 2026
4.0
(2)
14
riders
42.5km
03:10
490m
490m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
6
riders
24.2km
01:29
190m
190m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
9
riders
46.2km
03:30
320m
320m
Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.
4.0
(1)
4
riders
16.2km
00:59
130m
130m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
2
riders
16.4km
00:59
130m
130m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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With nearly 20 meters long, 6 meters wide, and 4 meters high, the Roche-aux-Fées remains the largest dolmen in France and one of the best-preserved in Europe. It is composed of a schist-covered passage formed by four chambers whose meaning has not yet been revealed. Although the construction of this monument dates back to the Neolithic period, around 2000 BC, specialists remain perplexed about its construction method. The site is impressive. And when you know that some stones weighing over 40 tons come from several kilometers around, you wonder how the inhabitants of the time managed to move them there. Such a site could only inspire stories, legends, and beliefs. One of them tells that the fairy Viviane, aided by fellow fairies, would have built this imposing monument... in one night. Another concerns lovers: to know if their union will last, couples must walk around the Roche-aux-fées, each in a different direction, and count the stones. If they find the same number of stones, their future will be bright! Through a mysterious alignment during the winter solstice on December 21st or 22nd, the sun rises facing the entrance of the dolmen. At that moment, the light rays magically illuminate the stone located at the back of the covered passage. Access is free and open. The small surrounding roads are charming and quiet.
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Short video of the site: https://www.youtube.com/watch?v=bqEBsKL7P7s
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Great tour to do with the family with lots of undergrowth. Pond skirted several times. Very pleasant.
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It is an artistic and cultural place. Built on the site of the feudal manor of Plessis-Guériff, the current castle dates from 1722. Partly destroyed during the Hundred Years' War, it has retained a 15th century wing which is still visible today. You can explore the sculpture park and take part in artistic workshops. It is also a hotel. For all information and reservations click here: https://www.chateaudesperes.fr/en
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The rock of the fairies, French: Roche-aux-fées, located in the middle of green nature, is simply enchanting. If you are interested in megaliths, you should take a break here. The undisputed largest dolmen in France is also closely linked to the legend of the fairy Liliane. The construction of this monument undoubtedly dates back to the Neolithic period, i.e. around 2,000 years before our time. So far, researchers have not found an explanation for exactly how it was built. With its 19.50 meters length, six meters width and four meters height, the structure is more than impressive. And when you consider that some of the stones, which weigh more than 40 tons, come from several kilometers away, you can rightly ask yourself how the people of that time managed to transport them here. This mystery gave rise to a legend: it is said that the impressive structure was built by Viviane and her fairy friends.
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Superb place: the castle, the park, the works of art exhibited in the open air, free access. Really essential!
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Truly magical and impressive. It's hard to believe what people can achieve with simple means...
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There are over 50 touring cycling routes around Coësmes, offering a variety of options for different skill levels and preferences. The region provides a pleasant environment for touring cyclists, with routes traversing tranquil countryside.
Yes, Coësmes offers several easy touring cycling routes perfect for beginners or families. For instance, the Étang de la Forge – L'étang de la Forge loop from La Basse Foucherie is an easy 17 km trail that circles the scenic Étang de la Forge, providing peaceful views and a gentle ride. Another easy option is the Bike loop from Retiers, which is about 16 km long.
Experienced touring cyclists looking for a challenge will find options around Coësmes. The Bike loop from Thourie is a difficult 43.9 km path that explores the broader countryside, featuring varied elevation and a more demanding ride.
The region around Coësmes is rich in history and natural beauty. A significant landmark is the La Roche-aux-Fées Dolmen, a remarkable Neolithic megalithic site. You can also discover the Musée des Mines de la Brutz, offering insights into local history, or cycle past the historic Pont de la Noë.
Yes, Coësmes benefits from its integration into the extensive cycling network of Ille-et-Vilaine, which includes numerous 'voies vertes' (greenways). These paths are often developed along former railway lines or towpaths, ensuring safe and serene cycling away from motorized traffic. An example is the Greenway from Châteaubriant to Rougé, which provides a dedicated route for cyclists.
The touring cycling routes around Coësmes are highly rated by the komoot community, with an average score of 4.4 stars from over 70 reviews. Cyclists often praise the tranquil countryside, the accessible greenways, and the variety of options available, from easy loops to more challenging regional connections.
Many of the touring cycling routes around Coësmes are designed as loops, allowing you to start and end your ride in the same location. Examples include the Étang de la Forge – L'étang de la Forge loop from La Basse Foucherie and the Fathers' Castle – Tour of Marcillé loop from Retiers, which takes you through the local rural landscape.
The duration of routes around Coësmes varies depending on their length and difficulty. Easy routes like the 17 km Étang de la Forge loop typically take around 1 hour and 15 minutes. Longer, more difficult routes, such as the 43.9 km Bike loop from Thourie, can take over 3 hours to complete.
The spring and autumn months generally offer the most pleasant weather for touring cycling in Coësmes, with milder temperatures and beautiful scenery. Summer can also be enjoyable, though it may be warmer. The region's tranquil countryside provides a scenic backdrop for touring throughout much of the year.
Yes, the region around Coësmes offers routes that are largely paved, providing a smoother experience for touring cyclists. The
While specific parking areas for each route are not detailed, Coësmes and nearby towns like Retiers, which serve as starting points for several routes, typically offer public parking facilities. It's advisable to check local signage upon arrival for the most convenient parking options.
Coësmes is located in the Ille-et-Vilaine department, which has a regional public transport network. While direct public transport access to every trailhead might be limited, major towns in the vicinity often have bus services. For detailed information on routes and schedules, it's best to consult the regional transport authority's website for Ille-et-Vilaine.


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