4.2
(40)
342
riders
44
rides
Gravel biking around Saint-Gildas-Des-Bois offers diverse terrain, characterized by the extensive network of paths along the Nantes-Brest Canal, through large pine forests, and across wetland areas. The region features varied landscapes, including tranquil towpaths, natural tracks, and former quarries reclaimed by nature, providing a mix of flat sections and gentle ascents. These routes traverse areas with unique natural features like the Bernugat Site's blue-toned lake and the Marais de Vilaine's marshlands.
Last updated: July 3, 2026
5.0
(2)
22
riders
59.3km
03:03
190m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(8)
30
riders
36.1km
01:53
150m
150m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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3.0
(2)
11
riders
23.9km
01:12
80m
80m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.3
(3)
8
riders
39.5km
02:28
140m
140m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
13
riders
49.3km
02:29
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The castle once dominated the Vilaine River from a rocky spur, controlling a strategic river and land route. It was fortified with moats, gates and towers, and its county belonged to the powerful Rieux family.
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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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These numerous locks break the monotony that can sometimes set in during a long outing.
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Brittany mount Besne
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Stunning structure along the Nantes-Brest Canal. Can be used as a bikepacking shelter. Shops nearby.
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Landscape that is different from the rest of the canal. Very wild
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A great place to have fun with children. Biking, canoeing, boating, and hiking. Tree-top adventure course. Restaurant and open-air café nearby.
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The region of Saint-Gildas-Des-Bois offers a wide selection of gravel biking routes, with over 45 trails available on komoot. These routes cater to various preferences, ranging from easy to difficult.
Gravel biking around Saint-Gildas-Des-Bois features diverse terrain. You'll encounter tranquil towpaths along the Nantes-Brest Canal, natural tracks through large pine forests like the Bernugat Site, and paths across wetland areas such as the Marais de Vilaine. The landscape offers a mix of flat sections and gentle ascents, providing varied riding experiences.
Yes, the area provides gravel biking options for all skill levels. You'll find 12 easy routes perfect for beginners, 28 moderate trails for those seeking a bit more challenge, and 6 difficult routes for experienced riders looking for a demanding adventure.
The region is rich in natural beauty and historical landmarks. You can explore the unique blue-toned lake at the Bernugat Site, formed from a former quarry, or cycle through the extensive pine forests. The Nantes-Brest Canal itself is a significant feature, offering scenic views and a tranquil riding experience. Additionally, you might pass by the picturesque Bretesche Castle, an impressive 14th-century edifice situated on the water's edge.
Yes, many of the gravel routes in Saint-Gildas-Des-Bois are designed as loops, allowing you to start and finish at the same point. For example, the moderate Canal de Nantes à Brest – Magpie Island loop from Sévérac offers a varied ride combining canal-side paths with exploration towards Île-aux-Pies.
The Loire-Atlantique region generally offers pleasant conditions for gravel biking from spring through autumn. Spring brings blooming nature, while autumn provides cooler temperatures and beautiful foliage. Summer is also suitable, though it can be warmer, especially on exposed canal paths. Winter riding is possible, but conditions may be wetter, particularly in wetland areas.
Absolutely. For experienced gravel bikers seeking a significant challenge, the difficult Paudais lock – Canal de Nantes à Brest loop from Saint-Gildas-des-Bois is an excellent choice. This extensive route follows the historic Nantes-Brest Canal for over 150 km, offering a full day's adventure.
The gravel biking routes in Saint-Gildas-Des-Bois are highly rated by the komoot community, with an average score of 4.2 stars from over 30 reviews. Riders often praise the diverse terrain, the tranquility of the canal paths, and the natural beauty of the forests and wetlands. The blend of natural and historical scenery is frequently highlighted as a key enjoyment factor.
Yes, the region offers routes that venture into riverine landscapes and port areas. A popular choice is the moderate Port of Rieux – Redon loop from Saint-Dolay, which takes you through scenic riverbanks and past charming port towns.
Yes, you can incorporate historical sights into your gravel rides. Besides the prominent Bretesche Castle, some routes may lead you past other historical structures. For instance, the Château de la Groulais – Paudais lock loop from Sévérac offers views of the Château de la Groulais, adding a historical dimension to your ride.
Beyond the immediate vicinity, the region's proximity to other significant natural sites makes for excellent extended gravel routes. You can explore towards Île-aux-Pies, the Loire Estuaire, or even the Marais Salants de Guérande, offering diverse environments from riverine to coastal marshes for varied riding experiences.
Yes, some routes provide excellent opportunities to enjoy views of the Vilaine River. You can find specific viewpoints like the View of the Vilaine, which can be incorporated into your gravel biking itinerary for picturesque stops.


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