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Routes
Road cycling routes
France
Brittany
Vannes
Pénestin

Port Tréhiguier – Arzal Dam loop from Kerséguin

Routes
Road cycling routes
France
Brittany
Vannes
Pénestin

Port Tréhiguier – Arzal Dam loop from Kerséguin

Moderate

4.2

(6)

64

riders

Port Tréhiguier – Arzal Dam loop from Kerséguin

01:58

44.7km

310m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 23, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 14.8 km for 137 m

Waypoints

A

Start point

Bus stop

Get Directions
1

7.36 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

2

7.44 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

3

12.0 km

Saint Martin Church

Highlight • Religious Site

Neo-Gothic style church built in 1877, it replaces an old 11th-century Romanesque church that had become too small and dilapidated.
Interesting small built heritage in the village center.

Showing Translation

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4

12.0 km

War Memorial

Highlight • Monument

5

12.1 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

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6

14.8 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

7

17.7 km

Gentle bends on the D148 between Arzal and Marzan

Highlight (Segment) • Other

8

24.9 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

44.7 km

End point

Bus stop

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Way Types & Surfaces

Way Types

38.7 km

3.02 km

1.77 km

1.22 km

< 100 m

Surfaces

40.0 km

4.36 km

235 m

137 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.

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Weather

Powered by Foreca

Wednesday 4 November

11°C

4°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

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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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