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

Routes

Bike touring routes & trails

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

Hard

4.0

(8)

riders

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

05:23

79.8km

640m

Cycling

Hard bike ride. Very 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: April 1, 2026

Tips

Includes a segment in which cycling is not permitted

After 7.73 km for 76 m

Waypoints

Start point

Parking

Get Directions

7.77 km

Port of Foleux - Nivillac

Highlight • Structure

Very nice and relatively quiet little port on the banks of the Vilaine.

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18.2 km

On long paths through the grass

Highlight • Other

A sweeping view through the river valley, nature at its finest, the grass swaying in the wind. Gravel paths that are easy to ride.

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26.1 km

Rieux Castle

Highlight • Castle

Hello friends, at the edge of the ugly stop to visit the ruins of the castle which was the residence of the Breton kings

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52.4 km

Protected bike path

Highlight • Other

54.0 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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54.2 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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63.7 km

Pretty little road

Highlight • Other

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

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65.9 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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79.8 km

End point

Parking

Way Types & Surfaces

Way Types

48.7 km

23.1 km

6.60 km

1.13 km

337 m

< 100 m

Surfaces

45.6 km

12.6 km

12.5 km

9.10 km

175 m

< 100 m

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)

Weather

Tuesday 26 May

33°C

17°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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Old Port of La Roche-Bernard – Arzal Dam loop from La Roche-Bernard

Port of Foleux - Nivillac

On long paths through the grass

Rieux Castle

Protected bike path

Cannon Viewpoint of La Roche-Bernard

Old Port of La Roche-Bernard

Pretty little road

Arzal Dam

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