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France
Brittany
Vannes

Saint-Martin-Sur-Oust

The best gravel rides around Saint-Martin-Sur-Oust

4.4

(17)

128

riders

20

rides

Gravel biking around Saint-Martin-Sur-Oust offers a diverse landscape characterized by the Nantes-Brest Canal, the Oust Valley, and extensive rural trails. The region features a mix of well-maintained canal towpaths, wooded sections, and charming country roads. Riders can expect varied terrain, from flat riverside paths to gentle ascents through the surrounding countryside, providing a balanced experience for different skill levels.

Best gravel bike trails around Saint-Martin-Sur-Oust

  • The most popular gravel bike trail is Magpie Island – Canal de Nantes à Brest…

Last updated: May 5, 2026

4.8

(5)

35

riders

#1.

Magpie Island – Canal de Nantes à Brest loop from Glénac

31.4km

01:33

100m

100m

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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Easy

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy
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Popular around Saint-Martin-Sur-Oust

Nantes-Brest Canal – Cycling along Brittany's towpaths

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Nantes-Brest Canal – Cycling along Brittany's towpaths

Cycling Collection by

SimonWicart

Tips from the Community

Aktivix 🌐
November 14, 2025, Redon

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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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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Perfect for refueling

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MarcM
August 22, 2025, Redon

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.

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So calm! It's very relaxing.

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Absolutely charming town, lots of little corners with beautiful things. Definitely recommend stopping and enjoying.

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through the countryside, always nice to find the canal again

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Frequently Asked Questions

How many gravel bike trails are available around Saint-Martin-Sur-Oust?

There are over 25 gravel bike trails around Saint-Martin-Sur-Oust, offering a wide range of options for different skill levels and preferences. The komoot community has explored these routes more than 180 times.

What kind of terrain can I expect on gravel bike trails in Saint-Martin-Sur-Oust?

You can expect a diverse landscape, primarily characterized by the well-maintained towpaths of the Nantes-Brest Canal and the Oust Valley. Routes also feature extensive rural trails, wooded sections, and charming country roads. The terrain varies from flat riverside paths to gentle ascents through the surrounding countryside.

What is the best time of year for gravel biking in Saint-Martin-Sur-Oust?

Brittany generally offers good cycling conditions for much of the year. Spring and autumn provide pleasant temperatures and beautiful scenery. While the canal paths are well-maintained, some rural and wooded trails might be muddier after heavy rain, so checking local weather conditions is advisable, especially in wetter seasons.

Are there options for different skill levels?

Yes, the routes around Saint-Martin-Sur-Oust cater to various abilities. You'll find options for easy rides, moderate challenges, and more difficult trails. For example, a challenging route like Malestroit Lock – Historic centre of Malestroit loop from Malestroit covers over 110 km with significant elevation.

What do other gravel bikers say about the trails here?

The gravel biking routes in Saint-Martin-Sur-Oust are highly rated by the komoot community, with an average score of 4.4 stars from more than 20 reviews. Riders often praise the peaceful canal paths, the scenic beauty of the Oust Valley, and the variety of terrain that makes for an engaging experience.

What natural features or landmarks can I see while gravel biking in the Oust Valley?

The Oust Valley is a 'Grand Site National' offering breathtaking scenery. You can explore the Towpath on the Nantes-Brest canal, which is a central feature. A notable natural site is the 'Île aux Pies' (Island of Magpies), with its striking granite cliffs and water gap. Routes also pass through forests like the Bois de Grisan and near serene ponds and marshes.

Are there any historical sites or towns accessible by gravel bike?

Absolutely. Just a short ride along the canal, you can reach the Historic centre of Malestroit, a 'city of character' known for its medieval architecture and historic locks. You might also encounter old mills, such as the Trémenan mills, hinting at the area's past industries.

Are there family-friendly gravel biking options in Saint-Martin-Sur-Oust?

Yes, the flat, traffic-free towpaths along the Nantes-Brest Canal are particularly suitable for families. These greenways provide a safe and enjoyable environment for riders of all ages to explore the Oust Valley. For more ideas on family-friendly routes, you can refer to resources like Brittany Tourism's family cycling ideas.

Can I bring my dog on the gravel bike trails?

Many of the rural trails and canal paths in the region are dog-friendly, especially if your dog is accustomed to running alongside a bike or can be carried in a trailer. Always ensure your dog is under control, and be mindful of local regulations, especially in nature reserves or agricultural areas. It's best to keep them on a leash when passing other cyclists or pedestrians.

Where can I find parking for gravel biking near Saint-Martin-Sur-Oust?

Parking is generally available in and around Saint-Martin-Sur-Oust, particularly near popular access points to the Nantes-Brest Canal and in the nearby towns. Look for designated parking areas in villages like Glénac or Malestroit, which serve as common starting points for many routes.

Is public transport available to reach the trails, especially with a bike?

While regional public transport options exist in Brittany, carrying bikes can sometimes be challenging. It's advisable to check specific bus or train services in advance for their bike policies and availability, especially for routes connecting to smaller villages like Saint-Martin-Sur-Oust. Many visitors prefer to drive to a starting point and park.

Are there any circular gravel bike routes?

Most of the gravel bike routes listed in the area are designed as loops, allowing you to start and finish at the same point. For instance, The Oust River and Its Locks – Gélin lock loop from Saint-Congard is a moderate 36 km circular route that explores the river and its locks.

Are there places to eat or stay near the gravel biking routes?

Yes, Saint-Martin-Sur-Oust and nearby towns like Malestroit offer various amenities. You'll find charming cafes, restaurants, and accommodations ranging from guesthouses to hotels. These towns are often located directly on or very close to the canal paths, making them convenient stops for refreshments or overnight stays.

Most popular routes around Saint-Martin-Sur-Oust

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