4.3
(14)
170
riders
18
rides
Gravel biking around Guillac, located in the Morbihan department of Brittany, France, offers diverse routes through picturesque landscapes. The region is characterized by the Oust Valley and the Nantes-Brest Canal, providing scenic pathways that often include unpaved segments ideal for gravel biking. Cyclists can explore a network of routes that traverse woodlands and connect to historic towns like Josselin and Malestroit. This varied terrain ensures options for different fitness levels, with many trails offering a quiet riding experience away from…
Last updated: July 4, 2026
4.0
(3)
32
riders
59.8km
04:00
450m
450m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
18
riders
149km
08:50
1,370m
1,370m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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25
riders
101km
06:37
930m
930m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.2
(5)
22
riders
14.7km
00:58
60m
60m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
19
riders
50.3km
03:16
450m
450m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Guillac
Nice little spot to sit and have a snack peacefully by the water. It's right on the voie verte
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Great for a crepe break. Even better for a beer break!!
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Very beautiful castle, the crows that prowl around it make it look... strange.
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Sculpture in the village of Néant-sur-Yvel https://morbihan.com/a-voir-a-faire/suivez-le-guide/les-nouveaux-chevaliers-de-la-table-ronde-neant-sur-yvel-fr-4411852/
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Very beautiful castle on the canalized Oust
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superb work which is completed over time. a beautiful stage in the hike.
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Josselin and its castle look very impressive from afar. A beautiful sight!
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Our guide features 11 dedicated no-traffic gravel bike trails around Guillac, offering a variety of experiences for different skill levels. You'll find routes ranging from easy to difficult, ensuring there's something for everyone seeking a quiet ride.
The no-traffic gravel routes around Guillac often follow the scenic Oust Valley and sections of the Nantes-Brest Canal. While the canal paths are generally paved, many routes incorporate unpaved segments ideal for gravel biking, taking you through diverse landscapes including woodlands and rural areas. Expect a mix of surfaces suitable for gravel bikes.
Yes, there are options suitable for families. For an easier ride, consider the Lac au Duc – Dukes' Lake loop from Taupont. This route is rated easy and offers a shorter distance with minimal elevation gain, perfect for a relaxed family outing away from traffic.
Many routes offer access to significant historical sites. You can cycle past the impressive Château de Josselin seen from the Sainte-Croix bridge or the Josselin Castle itself. The nearby town of Malestroit, with its Historic centre of Malestroit, also offers charming 15th and 16th-century architecture and ancient locks, providing cultural points of interest during your ride.
Yes, many of the no-traffic gravel routes around Guillac are designed as loops. For example, the Josselin Castle – Lock-keeper's house loop from Loyat offers a substantial circular ride, allowing you to start and finish in the same location while exploring the beautiful surroundings.
Brittany generally offers pleasant conditions for gravel biking from spring through autumn. The mild climate means you can enjoy the trails for much of the year. Spring brings blooming landscapes, while autumn offers vibrant colors. Summer is also popular, but it's always wise to check local weather forecasts before heading out.
Absolutely. For experienced gravel bikers seeking a challenge, routes like the View of Lac au Duc – Lake Trémelin loop from Ploërmel offer significant distances and elevation gains, pushing your limits on quiet paths. Another demanding option is the Josselin Castle – View of Lac au Duc loop from Taupont.
The no-traffic gravel trails around Guillac are highly rated by the komoot community, with an average score of 4.3 stars. Reviewers often praise the tranquility of the routes, the beautiful scenery along the Oust Valley and Nantes-Brest Canal, and the opportunity to explore historical sites like Josselin Castle away from busy roads.
While specific parking spots aren't detailed for every route, Guillac and nearby towns like Josselin and Ploërmel are generally well-equipped with public parking areas. It's advisable to check local maps or information for designated parking near your chosen starting point, especially in town centers or near popular attractions.
Yes, the Lac au Duc area is a prominent feature in several routes. While some start further afield, you can find routes that incorporate the lake, such as the Lac au Duc – Dukes' Lake loop from Taupont, which offers a peaceful ride around this beautiful body of water.
Generally, dogs are welcome on public paths and trails in France, especially if kept on a leash. However, specific rules can vary in certain protected natural areas or private properties. It's always best to keep your dog under control and clean up after them to ensure a pleasant experience for all trail users.


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