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Routes
Road cycling routes
France
Brittany
Vannes
Marzan

Arzal Dam – Port Tréhiguier loop from Marzan

Routes
Road cycling routes
France
Brittany
Vannes
Marzan

Arzal Dam – Port Tréhiguier loop from Marzan

Moderate

3.3

(3)

56

riders

Arzal Dam – Port Tréhiguier loop from Marzan

02:03

47.2km

320m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: September 24, 2026

Tips

Includes a segment in which cycling is not permitted

After 17.3 km for 86 m

Waypoints

A

Start point

Bus stop

Get Directions
1

119 m

Saint Peter's Church

Highlight • Other

2

2.70 km

3

9.32 km

Arzal Dam

Highlight • Monument

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 …

Translated by Google •

Tip by

4

17.1 km

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

5

17.1 km

Port Tréhiguier

Highlight • Structure

Small charming harbor overlooking the Vilaine estuary. Some very nice restaurants and bars for a mid-term coffee or to fill your cans!

Translated by Google •

Tip by

6

17.3 km

Tréhiguier Lighthouse

Highlight • Monument

Adjoining its port, the Tréhiguier lighthouse is a former semaphore, erected in 1880 then closed in 1989. Today, it is open to the public during the summer and hosts numerous …

Translated by Google •

Tip by

7

31.4 km

War Memorial

Highlight • Monument

8

31.4 km

Bourg Cross

Highlight • Other

17th-century pedimented cross, with Christ on the cross on the facade, the Virgin and Child on the reverse, to the left and right, under the crossbeam, the Virgin and Saint John.

Showing Translation

Tip by

B

47.2 km

End point

Bus stop

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Way Types & Surfaces

Way Types

40.3 km

2.90 km

2.33 km

1.48 km

209 m

< 100 m

Surfaces

40.9 km

5.96 km

260 m

113 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 (60 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Tuesday 20 October

14°C

10°C

46 %

Additional weather tips

Max wind speed: 28.0 km/h

to get more detailed weather forecasts along your route

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