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

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

Moderate

4.8

(4)

riders

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

02:33

42.4km

330m

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: June 18, 2026

Tips

Includes a segment in which cycling is not permitted

After 33.3 km for 71 m

Waypoints

Start point

Bus stop

Get Directions

3.60 km

The annex at the Port of Tréhiguier

Highlight • Other

It's a very nice place by the sea, with a wide choice of wines, beers and cocktails from all over the world. The café opens every day at 7:30 am …

Translated by Google •

Tip by

11.4 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 •

Tip by

13.7 km

Pretty little road

Highlight • Other

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

Translated by Google •

Tip by

20.3 km

Villaine Valley

Highlight • River

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

Translated by Google •

Tip by

23.0 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 •

Tip by

25.7 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.

Translated by Google •

Tip by

42.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

21.0 km

16.8 km

2.40 km

1.68 km

590 m

Surfaces

20.5 km

13.3 km

5.23 km

3.34 km

< 100 m

Elevation

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

Weather

Monday 22 June

39°C

22°C

0 %

Additional weather tips

Max wind speed: 11.0 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 Pénestin

The annex at the Port of Tréhiguier

Arzal Dam

Pretty little road

Villaine Valley

Old Port of La Roche-Bernard

Étier de Ran Coet

Nearby routes

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