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Arzal Dam – Old Port of La Roche-Bernard loop from La Corne du Cerf

Routes

Bike touring routes & trails

Arzal Dam – Old Port of La Roche-Bernard loop from La Corne du Cerf

Moderate

4.6

(9)

riders

Arzal Dam – Old Port of La Roche-Bernard loop from La Corne du Cerf

03:13

48.6km

390m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 11, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc naturel régional du Golfe du Morbihan

Waypoints

Start point

Bus stop

Get Directions

2.93 km

Dirt Path

Highlight • Trail

very beautiful

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9.95 km

Tree-Lined Path in Parc Naturel Régional du Golfe du Morbihan

Highlight • Trail

12.0 km

Riverside Rest Area in Muzillac

Highlight • Rest Area

Ideal for a lunch break sheltered under the weeping willows.

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26.6 km

Arzal Dam

Highlight • Monument

Built in 1970, the Arzal dam allows the regulation of the waters of the Vilaine and the storage of drinking water for the inhabitants of the region. Its construction allowed …

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28.9 km

Pretty little road

Highlight • Other

Pleasant section of the Rance and Vilaine cycle route, between Vieille Roche and Keraudrain.

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38.4 km

Old Port of La Roche-Bernard

Highlight • Settlement

The stones, weathered by time, and the steep alleyways tell the story of this "Small Town of Character," born of the sea and maritime trade. Clinging to the banks of …

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38.6 km

Cannon Viewpoint of La Roche-Bernard

Highlight • Viewpoint

Labeled a Small City of Character, La Roche-Bernard is full of stories, especially in the heart of its old quarter.

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40.6 km

Cross of the Executed

Highlight • Other

The Story of François and Thérèse Mitaillé

On August 7, 1944, in the final chaotic weeks of the German occupation, François Mitaillé and his younger sister Thérèse left their home …

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48.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

26.4 km

10.5 km

4.35 km

3.33 km

2.57 km

1.46 km

Surfaces

28.6 km

7.22 km

6.76 km

5.79 km

186 m

< 100 m

Elevation

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

Highest point (70 m)

Lowest point (0 m)

Weather

Sunday 30 August

22°C

16°C

28 %

Additional weather tips

Max wind speed: 25.0 km/h

to get more detailed weather forecasts along your route

Comments

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Arzal Dam – Old Port of La Roche-Bernard loop from La Corne du Cerf

Dirt Path

Tree-Lined Path in Parc Naturel Régional du Golfe du Morbihan

Riverside Rest Area in Muzillac

Arzal Dam

Pretty little road

Old Port of La Roche-Bernard

Cannon Viewpoint of La Roche-Bernard

Cross of the Executed

Nearby routes

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