4.4
(54)
178
riders
29
rides
Mountain biking around Moisdon-La-Rivière features a landscape characterized by rolling terrain, extensive forests, and significant water bodies. The region includes the Don River, numerous ponds, and prominent features like the Grand Réservoir de Vioreau and Étang de Beaumont. Trails navigate through wooded areas, along reservoir shores, and across unique "landes" (heaths/moors) with schistose rocks and slate. Elevation changes are generally moderate, providing a mix of steady climbs and flatter sections suitable for mountain biking.
Last updated: May 6, 2026
4.3
(7)
25
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.4
(7)
28
riders
36.1km
02:20
210m
210m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.5
(2)
14
riders
37.3km
02:46
190m
190m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.4
(5)
6
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(3)
14
riders
51.3km
03:20
320m
320m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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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 nearly 30 mountain bike trails around Moisdon-La-Rivière, offering a variety of options for different skill levels.
Yes, Moisdon-La-Rivière offers 9 easy mountain bike trails, perfect for beginners or those looking for a relaxed ride. These routes typically feature moderate elevation changes and navigate through wooded areas and along reservoir shores.
Trail distances vary significantly. For example, the The Arcades of the Rigole – Grand Réservoir de Vioreau loop from La Meilleraye-de-Bretagne is about 24.8 miles (39.9 km), while the Étang de Beaumont – Étang de Vioreau loop from Issé extends to 42.3 miles (68.1 km).
While the region is characterized by rolling terrain and moderate elevation, there are no trails explicitly rated as 'difficult' in our current selection. Most routes are moderate, offering a good balance of steady climbs and flatter sections. For a longer, more demanding moderate ride, consider the Étang de Beaumont – Étang de Vioreau loop from Issé.
The trails around Moisdon-La-Rivière are known for their scenic beauty, featuring extensive forests, picturesque rolling terrain, and significant water bodies like the Grand Réservoir de Vioreau and Étang de Beaumont. Many routes offer views of these reservoirs and wind through natural woodlands.
Yes, many of the mountain bike trails in Moisdon-La-Rivière are circular. Examples include the popular The Arcades of the Rigole – Grand Réservoir de Vioreau loop from La Meilleraye-de-Bretagne and the Étang de Beaumont – Forêt de l'Arche loop from Issé.
Along the trails, you can explore various points of interest. Notable attractions include the historic Châteaubriant Castle, the scenic West bridge at Lac de Vioreau, the impressive Vioreau Reservoir Dam, and the historical Forges of Moisdon-la-Rivière. Many routes also pass by beautiful lakes like Lake Vioreau and Choisel Pond.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 50 reviews. Mountain bikers often praise the varied terrain, the beautiful reservoir views, and the extensive network of trails through forests.
Yes, with 9 easy trails and many moderate routes featuring gentle hills and well-maintained paths, Moisdon-La-Rivière offers good options for family-friendly mountain biking. The scenic routes along the reservoirs are particularly enjoyable for all ages.
The region's climate generally makes spring and autumn ideal for mountain biking, offering pleasant temperatures and vibrant natural scenery. Summer can also be enjoyable, especially on shaded forest trails, but always check local weather conditions.
While popular routes like those around the Grand Réservoir de Vioreau can see more activity, the extensive network of nearly 30 trails means you can often find quieter paths, especially on weekdays or by exploring some of the less-trafficked forest routes. The region's natural landscape provides ample space for exploration.
Parking is generally available near the starting points of many trails, especially around popular areas like the Grand Réservoir de Vioreau and Étang de Beaumont. Specific parking information is often detailed on individual route pages on komoot, so it's best to check the tour details for your chosen route.


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