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Arzal Dam – Old Port of La Roche-Bernard loop from Ambon

Arzal Dam – Old Port of La Roche-Bernard loop from Ambon

Moderate

5.0

(2)

32

riders

Arzal Dam – Old Port of La Roche-Bernard loop from Ambon

03:04

55.6km

400m

Gravel riding

Moderate gravel 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: May 14, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional du Golfe du Morbihan

Waypoints

A

Start point

Bus stop

Get Directions

1

5.49 km

Riverside Rest Area in Muzillac

Highlight • Rest Area

Ideal for a lunch break sheltered under the weeping willows.

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2

21.3 km

Arzal Dam

Highlight • Monument

The Arzal dam is built on the Vilaine estuary between Arzal and Camoël. It is the largest estuary dam in Europe. It is 500 meters long and has a sea …

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3

23.5 km

Pretty little road

Highlight • Other

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

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4

29.7 km

Étier de Ran Coet

Highlight • Trail

This route of about 34 kilometers is very interesting and amazing, but also demanding on physical condition and technicality, but I recommend it for those who like MTB Cross country.

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5

32.4 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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6

32.6 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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7

45.2 km

Dirt Path

Highlight • Trail

very beautiful

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8

52.2 km

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

Highlight • Trail

B

55.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

24.5 km

18.1 km

6.90 km

3.00 km

1.98 km

1.16 km

Surfaces

24.6 km

12.9 km

10.2 km

7.64 km

324 m

< 100 m

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Elevation

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)

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Weather

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Today

Saturday 23 May

31°C

17°C

0 %

Additional weather tips

Max wind speed: 22.0 km/h

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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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