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Grand Réservoir de Vioreau – Lake Vioreau loop from La Demenure

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Hiking trails & Routes

Grand Réservoir de Vioreau – Lake Vioreau loop from La Demenure

Moderate

4.0

(2)

hikers

Grand Réservoir de Vioreau – Lake Vioreau loop from La Demenure

02:24

9.37km

40m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: April 29, 2026

Waypoints

Start point

Parking

Get Directions

181 m

Grand Réservoir de Vioreau

Highlight • Lake

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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213 m

Lake Vioreau

Highlight • Lake

Largest reservoir in the Loire-Atlantique department with an area of 200 hectares. It enables the Nantes-Brest Canal to be supplied with water via the supply canal. It is owned by the Loire-Atlantique Department under the direction of the Maritime Service.

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8.29 km

West bridge at Lac de Vioreau

Highlight • Lake

A quiet deck with stunning views of the lake. A great place to take a break from your run and take in the scenery.

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Tip by

9.37 km

End point

Parking

Way Types & Surfaces

Way Types

5.20 km

2.30 km

1.71 km

155 m

Surfaces

3.47 km

1.95 km

1.89 km

1.60 km

460 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Monday 25 May

34°C

19°C

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Grand Réservoir de Vioreau – Lake Vioreau loop from La Demenure

Grand Réservoir de Vioreau

Lake Vioreau

West bridge at Lac de Vioreau

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