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Port Tréhiguier – Old Port of La Roche-Bernard loop from Kerséguin

Port Tréhiguier – Old Port of La Roche-Bernard loop from Kerséguin

Moderate

4.2

(5)

riders

Port Tréhiguier – Old Port of La Roche-Bernard loop from Kerséguin

02:02

45.3km

320m

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: May 14, 2026

Tips

Cycling is not permitted along parts of this route

After 7.26 km for 86 m

After 15.7 km for 85 m

Waypoints

Start point

Bus stop

Get Directions

7.30 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 exhibitions. Also, it is possible to climb to its summit to enjoy a panoramic view of the Vilaine estuary.

Translated by Google •

Tip by

7.47 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

7.52 km

Billiers

Highlight • Settlement

7.56 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 (except Monday, closing day), so you can also have breakfast there. There are even concerts and events organized, mainly in the summer.

Translated by Google •

Tip by

15.6 km

Arzal Dam

Highlight • Structure

This is an artificial dam on La Vilaine. There is an information board with the history of this structure.
Here you can consult information on the lock times:
lavilaine.com/index.php/fr/eclusages-du-jour

Translated by Google •

Tip by

18.3 km

Gentle bends on the D148 between Arzal and Marzan

Highlight (Segment) • Other

25.5 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 the Vilaine, sometimes built into the rocky slope, old houses and private mansions descend towards the old port. A truly unique urban landscape!

Translated by Google •

Tip by

45.3 km

End point

Bus stop

Way Types & Surfaces

Way Types

39.2 km

2.54 km

1.91 km

1.36 km

253 m

< 100 m

Surfaces

39.0 km

5.73 km

583 m

< 100 m

Elevation

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

Weather

Sunday 12 July

30°C

19°C

61 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

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Port Tréhiguier – Old Port of La Roche-Bernard loop from Kerséguin

Tréhiguier Lighthouse

Port Tréhiguier

Billiers

The annex at the Port of Tréhiguier

Arzal Dam

Gentle bends on the D148 between Arzal and Marzan

Old Port of La Roche-Bernard

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