4.6
(24)
199
riders
27
rides
No traffic gravel bike trails around Saint-Martin-Sur-Oust primarily follow the scenic Nantes to Brest Canal and the Oust River. The region features a network of greenways, known as "Voie Verte," offering varied surfaces from mostly paved to unpaved sections. These routes traverse alluvial and tree-lined areas, providing a blend of natural beauty and historical points of interest. The terrain generally includes gentle gradients along the waterways, with some routes incorporating minor elevation gains.
Last updated: October 7, 2026
4.8
(8)
55
riders
30.1km
01:30
130m
130m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.5
(8)
66
riders
59.9km
03:03
250m
250m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(2)
29
riders
64.2km
03:15
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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.
7
riders
49.0km
03:12
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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.
1
0
Very rolling, lots of dust on the panniers :)
0
0
Landscape that is different from the rest of the canal. Very wild
0
0
A great place to have fun with children. Biking, canoeing, boating, and hiking. Tree-top adventure course. Restaurant and open-air café nearby.
0
0
Perfect for refueling
0
0
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.
0
0
Absolutely charming town, lots of little corners with beautiful things. Definitely recommend stopping and enjoying.
0
0
through the countryside, always nice to find the canal again
0
0
There are 16 dedicated no-traffic gravel bike trails around Saint-Martin-Sur-Oust. These routes offer a variety of experiences, with 4 easy, 8 moderate, and 4 difficult options to choose from.
Saint-Martin-Sur-Oust is particularly well-suited for no-traffic gravel biking due to the extensive Towpath on the Nantes-Brest canal. This historic waterway features a 'Voie Verte' (greenway) that runs alongside the Oust river, providing dedicated cycling paths with varied surfaces, including unpaved sections perfect for gravel bikes. The region's natural beauty and historical charm further enhance the car-free cycling experience.
The terrain around Saint-Martin-Sur-Oust is quite varied. You'll find many routes along the Nantes-Brest canal which are generally flat and accessible, but also feature unpaved sections ideal for gravel bikes. While many routes are easy or moderate, such as the The Oust River and Its Locks – Magpie Island loop from Pleucadeuc, there are also more challenging options like the Dolmen of the Sprites – Rochefort-en-Terre loop from La Croix Neuve which includes significant elevation gain, requiring good fitness.
Yes, many of the no-traffic gravel bike routes in the area are circular, allowing you to start and end at the same point. An excellent example is the Magpie Island – Canal de Nantes à Brest loop from Glénac, which offers a scenic and convenient circular ride.
Along the no-traffic gravel bike trails, especially those following the Oust River and the Canal de Nantes à Brest, you can enjoy picturesque landscapes and historical sites. Notable attractions include the charming Historic centre of Malestroit with its 15th and 16th-century houses, and the historic Mills of Île Notre-Dame in Malestroit. The routes also offer views of the tranquil Oust River and its locks.
Absolutely. The 'Voie Verte' sections along the Canal de Nantes à Brest are particularly suitable for families, offering mostly flat and traffic-free paths. Routes like the The Oust River and Its Locks – Canal Boats and Lock Café loop from Saint-Congard provide a pleasant and accessible experience for all ages, with opportunities to enjoy the scenery and even stop at a lock café.
The best time for gravel biking in Saint-Martin-Sur-Oust is generally from spring through autumn (April to October). During these months, the weather is typically mild and pleasant, making for comfortable riding conditions. Spring brings blooming landscapes, while autumn offers beautiful foliage. While winter riding is possible, some unpaved sections might be muddier, and daylight hours are shorter.
Parking is generally available in the towns and villages along the Canal de Nantes à Brest and near trailheads. For example, you can often find parking in Glénac or Saint-Congard, which serve as starting points for several popular routes like the Magpie Island – Canal de Nantes à Brest loop from Glénac or the The Oust River and Its Locks – Canal Boats and Lock Café loop from Saint-Congard. Look for designated parking areas in these communes.
While direct public transport to every trailhead might be limited, regional bus services connect some of the larger towns in the area, such as Malestroit. From these towns, you can often cycle directly onto the 'Voie Verte' paths along the Canal de Nantes à Brest. It's advisable to check local bus schedules and bike carriage policies in advance.
The komoot community highly rates the gravel biking experience in Saint-Martin-Sur-Oust, with an average score of 4.4 stars. Riders frequently praise the tranquility of the traffic-free paths along the Oust River and the Canal de Nantes à Brest, the diverse terrain suitable for gravel bikes, and the charming historical towns like Malestroit that can be explored along the way. The scenic beauty and well-maintained greenways are often highlighted as key attractions.
Yes, for experienced riders looking for a longer challenge, routes like the Canal de Nantes à Brest – Malestroit Lock loop from Saint-Martin-sur-Oust offer a substantial distance of over 87 km and moderate difficulty, allowing for an extended exploration of the canal and surrounding areas. This route provides a great opportunity to cover more ground and enjoy the varied landscapes.


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