Tips
SimonWicart
October 4, 2023
Hiking
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 the expansion of the port of Arzal, a gateway for boaters who wish to sail in the estuary or on the Vilaine.
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•Konstanze
August 23, 2025
Hiking
It's a truly wonderful experience when the lock is opened for the sailing ships. This exciting spectacle, as the road is closed, the drawbridge is raised, and the sailors enter and exit the lock, is not to be missed.
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•Routes here
Best routes to Arzal Dam and Marina
4.8
(5)
83
hikers
23.8km
06:26
310m
310m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
Hard
4.8
(12)
66
hikers
16.5km
04:27
210m
210m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
4.7
(6)
84
hikers
22.7km
06:08
300m
290m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
Hard
Details
Informations
Elevation 50 m
Contacts
Weather
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Monday 2 March
18°C
6°C
0 %
Additional weather tips
Max wind speed: 12.0 km/h
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