4.5
(56)
208
riders
33
rides
Mountain bike trails around Issé traverse a varied landscape characterized by significant bodies of water, dense forests, and undulating terrain. The region features the expansive Lac de Vioreau, the largest lake in Loire-Atlantique, offering wooded banks and trails. The Don River meanders through the area, providing picturesque riverside paths and well-preserved hollow ways. Elevations like the former tin mine slag heap offer panoramic views, contributing to a diverse mountain biking experience.
Last updated: June 20, 2026
4.3
(7)
25
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.5
(8)
44
riders
35.9km
02:20
210m
210m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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5.0
(1)
19
riders
43.2km
03:01
180m
180m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.5
(2)
14
riders
37.3km
02:46
190m
190m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(3)
5
riders
27.2km
01:35
190m
190m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Very beautiful place. I was able to cycle around the lake but I'm pretty sure many of the paths are impassable in winter.
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The west bridge of Lake Voireau offers a beautiful, unobstructed view of the reservoir. The largest body of water in Loire-Atlantique, this lake stretches through the heart of the forest. Its wooded banks and landscaped beaches make it a pleasant stopover for a nature break or a swim.
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Some arcades are more accessible due to ongoing repair work. A diversion has been put in place.
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nighttime. A medieval fortress and Renaissance building, Châteaubriant Castle recounts ten centuries of history. In the Middle Ages, Châteaubriant Castle was at the heart of the Marches of Brittany. It served as a stronghold defending the duchy against the Kingdom of France. The keep, ramparts, seigneurial chapel, and the medieval courtyard lodgings still bear witness to the power of this fortress. In the 16th century, the bailey became a residence opening onto the gardens. The castle gardens are open to the public from February to December. Visit maps are available at the reception-shop for a better understanding of the site. A 3D space allows you to discover, with free access, the architectural evolution of the castle, from the 11th century to the present day. From February to December, heritage mediators will accompany you on an in-depth tour of the castle, its keep, and its gardens. During school holidays, family workshops allow parents and children to develop their creativity or spark their curiosity! Opening days: Gardens are open to the public, Wednesday to Sunday: 9am-6pm (February-March and October-December) or 9am-7:30pm (April-September). Prices: - Free entry for those over €0.00 (Free access to the château gardens) - Individual adult rate from €3.00 to €6.00 (Guided tours, free for those on minimum income and special cards) - Individual child rate from €0.00 (Guided tours free for those under 26) - Individual child rate from €0.00 (Guided tours free for those under 26) Child from €4.00 to €8.00 (Family activity) - Adult group rate from €5.00 (From 15 people) Payment methods: Credit cards - Bank and postal checks - Cash Tours Self-guided tours (individual): Yes Guided tours (individual): Yes Average visit duration (individual): 1 hour Self-guided tours (groups): Yes Guided tours on request (groups): Yes Guided tours (groups): Yes Average visit duration (groups): 1 hour Languages: Tour: French, English - Signs: French, English Services: Interactive kiosk - Shop - WiFi Additional information: Groups of 15 people or more are welcome - Pets allowed (Dogs on leashes are allowed in the park.) - Points of interest visible without a tour Access Location: SNCF train station: 0.5 km
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The castle is a self-guided tour. A little tip: there are bike racks inside the castle, just beyond the entrance.
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The Provostière pond, with a surface area of 73 ha, is connected to the Vioreau lake by the Rigole des Ajaux. This complex is part of the supply system of the Nantes-Brest canal. Its hydraulic management is ensured by the Loire-Atlantique Department, which has owned it since 2008. A 5.5 km path on which a bird observatory is located allows you to go around the pond in about 1h30.
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The Grand Réservoir de Vioreau, located near Joué-sur-Erdre in the Pays de la Loire region, is an impressive body of water covering approximately 900 hectares. Originally built to regulate the flow of the Erdre and ensure the water supply to the surrounding areas, the reservoir now provides a magnificent setting for mountain biking. The surrounding trails offer varied terrain, from smooth lakeside paths to challenging and rugged sections through the nearby forests.
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There are over 30 mountain bike trails around Issé, offering a diverse range of experiences. You'll find options for various skill levels, including 8 easy routes, 20 moderate routes, and 3 more challenging trails.
Mountain bike trails in Issé feature a varied landscape. You can expect routes traversing wooded banks, dense forests, and undulating terrain. The region is characterized by large bodies of water like Lac de Vioreau, the winding Don River, and elevated viewpoints such as the Slag Heap, providing a mix of lakeside paths, riverside trails, and climbs.
Yes, Issé offers 8 easy mountain bike routes that are suitable for beginners or families looking for a less strenuous ride. These trails often follow the gentler paths around the lakes and rivers, providing a pleasant experience without significant technical challenges.
Issé's mountain bike trails often pass by significant natural features and attractions. You can explore the shores of Lake Vioreau, the largest body of water in Loire-Atlantique, or discover the historic Vioreau Reservoir Dam. The former tin mine, The Slag Heap, offers panoramic views from its summit. Additionally, the Don River features picturesque hollow paths ideal for exploration.
Yes, many of the mountain bike routes in Issé are circular, allowing you to start and end at the same point. For example, the The Arcades of the Rigole – Grand Réservoir de Vioreau loop from La Meilleraye-de-Bretagne is a popular moderate circular trail around the Grand Réservoir de Vioreau.
The mountain bike trails in Issé are highly regarded by the komoot community, with an average rating of 4.5 stars from over 50 reviews. Riders often praise the scenic lakeside views, the varied terrain through forests and along rivers, and the well-maintained paths that offer a diverse riding experience.
Absolutely. Issé is known for its combination of wooded areas and significant bodies of water. The Étang de Beaumont – Forêt de l'Arche loop from Issé is a great example, leading you through the Forêt de l'Arche and past the Étang de Beaumont, offering a beautiful mix of forest and open water scenery.
Yes, the region includes elevated points that provide excellent views. The Slag Heap, a former tin mine, is a significant vantage point ranging from 70 to 121 meters high, offering magnificent panoramic views from its summit. Some trails will lead you towards or past this area.
One of the longer moderate routes is the Étang de Beaumont – Étang de Vioreau loop from Issé, which spans approximately 68.1 km and typically takes around 4 hours and 32 minutes to complete. This route connects two major bodies of water in the region.
Yes, the Don River, which flows through Issé, offers beautiful surroundings and well-preserved hollow paths. There are three specifically developed discovery trails along the river that are accessible for mountain biking, allowing you to explore its edges and charming sunken lanes.
Yes, particularly around Lac de Vioreau. A quiet deck at the west bridge of Lake Vioreau offers stunning views and is an ideal place to take a break and enjoy the scenery.
The duration of mountain bike rides in Issé varies depending on the route and your pace. Many moderate routes, such as the The arcades – Lake Vioreau loop from Abbaretz, can be completed in about 3 hours. Longer routes can take over 4 hours, while shorter, easy trails will be quicker.


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