4.8
(17)
148
riders
20
rides
Gravel biking around Carentoir offers a network of routes through the Morbihan department of Brittany, France. The region is characterized by its waterways, including the Canal de Nantes à Brest, and greenways like the Oyon Valley. Terrain often includes flat canal paths, rolling countryside, and sections through agricultural areas. The landscape provides varied surfaces suitable for gravel bikes, ranging from compacted earth to gravel tracks.
Last updated: October 6, 2026
4.0
(3)
20
riders
42.5km
02:42
340m
340m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
11
riders
20.2km
01:06
100m
100m
Hard gravel ride. Great for any fitness level. You may need to push your bike for some segments of this route.

6
riders
55.4km
03:19
310m
310m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
9
riders
50.9km
02:30
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
9
riders
129km
06:56
820m
820m
Hard gravel ride. Very 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.
1
0
Landscape that is different from the rest of the canal. Very wild
0
0
A lock keeper and his dream of a little paradise...
0
0
Great for a crepe break. Even better for a beer break!!
0
0
Pleasant and shaded on foot or by bike. A few paths // to do on foot or by mountain bike
0
0
small chapel at the top of a hill, always open, calm and relaxing
0
0
There are nearly 20 gravel bike routes documented around Carentoir on komoot. This includes a good mix of moderate and challenging options, with a couple of easier trails perfect for those new to gravel biking.
Yes, Carentoir offers a few easier gravel bike trails ideal for beginners or families. These routes often follow the flat canal paths, providing a gentle introduction to gravel cycling. For example, the Magpie Island – Canal de Nantes à Brest loop from Glénac is a moderate route that follows the historic canal, offering scenic and relatively flat riding.
The terrain around Carentoir is diverse, characterized by canal towpaths, greenways like the Oyon Valley, and rural roads. You'll encounter varied surfaces, from compacted earth and gravel tracks to some paved sections, all suitable for gravel bikes. The region features rolling countryside and agricultural areas, with some routes offering more significant elevation changes.
Many routes in the Carentoir area pass by historical and natural points of interest. You might encounter ancient megalithic sites such as the Menhirs of Monteneuf or the Alignments du Moulin. The Towpath on the Nantes-Brest canal itself is a highlight, offering picturesque views and a glimpse into the region's history. You could also explore the area around the Yves Rocher House in La Gacilly.
Spring and autumn are generally the best seasons for gravel biking in Carentoir. The weather is typically mild, and the natural scenery is vibrant. While summer can be pleasant, it can also be warmer and busier. Winter riding is possible, but some unpaved sections might be muddy, especially after wet weather.
Yes, Carentoir offers several challenging gravel bike routes for experienced riders. These longer routes often feature more significant elevation gains and cover greater distances. An example is the Canal de Nantes à Brest – Malestroit Lock loop from Saint-Martin-sur-Oust, which is a demanding 54.1-mile (87.1 km) trail through the canal system and rural areas.
Parking is generally available in the towns and villages that serve as starting points for many routes, such as Carentoir, Glénac, Guer, or Saint-Martin-sur-Oust. Look for public parking areas near the canal access points or town centers. Specific parking details are often provided within individual komoot Tour descriptions.
The gravel biking routes around Carentoir are highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the peaceful canal towpaths, the varied rural landscapes, and the well-maintained greenways that make for enjoyable rides. The mix of surfaces and the opportunity to explore charming villages are also frequently highlighted.
Yes, many of the gravel bike routes around Carentoir are designed as loops, allowing you to start and finish in the same location. The Guer loop from Guer is a popular moderate option that explores the local countryside. Another great loop is the Oyon Valley Greenway – Augan old railway station loop from Guer, offering a scenic journey through the valley.
During wet weather or winter, some unpaved sections of the trails, especially those through agricultural areas or forests, can become muddy and slippery. It's advisable to use tires with good grip and be prepared for changing conditions. Canal towpaths tend to remain more rideable, but always check local weather forecasts and consider routes with more compacted surfaces. The Moulin de Blond Lock – Guipry-Messac Mill loop from Monteneuf is a longer route that might be more exposed to elements, so plan accordingly.
Many of the gravel bike routes pass through or near small towns and villages where you can find cafes, bakeries, or small shops for refreshments. Towns like Malestroit, La Gacilly, or even Carentoir itself offer opportunities to refuel. Along the Canal de Nantes à Brest, you might also find waterside establishments, especially during peak season. It's always a good idea to carry some snacks and water, especially on longer routes.


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