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Routes
France
Brittany
Vannes
La Roche-Bernard

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

Routes
France
Brittany
Vannes
La Roche-Bernard

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

Moderate

4.0

(2)

11

riders

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

02:02

28.2km

340m

Gravel riding

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: March 28, 2026

Waypoints

A

Start point

Parking

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1

2.41 km

Villaine Valley

Highlight • River

Very nice passage despite the luggage on our gravels. A beautiful trail.

Translated by Google •

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2

4.44 km

View of the Vilaine

Highlight • Viewpoint

3

7.87 km

Trail overlooking the Arzal dam and its boats

Highlight (Segment) • Trail

A path which is both pleasant to walk and which offers beautiful views of Arzal and the Vilaine

Translated by Google •

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4

10.8 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 …

Translated by Google •

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5

20.1 km

Gaillard Footbridge

Highlight • Bridge

GR349 crossing point

Translated by Google •

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6

25.6 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 …

Translated by Google •

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7

27.6 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.

Translated by Google •

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8

27.8 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 …

Translated by Google •

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B

28.2 km

End point

Parking

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Way Types & Surfaces

Way Types

10.0 km

9.19 km

5.73 km

2.11 km

745 m

301 m

< 100 m

Surfaces

13.7 km

6.60 km

6.02 km

1.45 km

377 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 (50 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Wednesday 20 May

27°C

8°C

0 %

Additional weather tips

Max wind speed: 8.0 km/h

to get more detailed weather forecasts along your route

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

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