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Cascade Lock – Bon-Repos Abbey loop from Séglien

Routes

Bike touring routes & trails

Cascade Lock – Bon-Repos Abbey loop from Séglien

Hard

4.7

(28)

235

riders

Cascade Lock – Bon-Repos Abbey loop from Séglien

05:09

81.6km

570m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: February 28, 2026

Waypoints

Start point

Bus stop

Get Directions

18.7 km

Guernal lock on the Nantes-Brest canal

Highlight • Other

The Guernal lock is located in the town of Neulliac. It was built around the 1800s and is accompanied by several buildings (houses, stores, bridges over locks) whose restoration has not been completed.

Translated by Google •

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20.9 km

Cascade Lock

Highlight • Bridge

Just before arriving in Pontivy the river Blavet crashes down a wide cascade, while the canal is channelled left through a lock. Pedestrians and bikers can cross the narrow metal …

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32.5 km

Stumo lock on the Nantes-Brest canal

Highlight • Other

The locks at this location with the keeper's house midstream were probably also serving as a mill to harness the water power from the main Blavet river channel.

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36.3 km

Poulhibet lock - Canal de Nantes à Brest

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NB: This lock is equipped with public dry toilets and a mechanical repair station for self-service bicycles, pump, tools, frame rack, etc. In addition, the beverage dispenser also contains spare inner tubes!

Translated by Google •

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40.0 km

Guerlédan Lock - Nantes to Brest Canal

Highlight • Monument

Last locks before reaching the barrage

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54.6 km

Bon-Repos Abbey

Highlight • Other

Former abbey now in ruins. Interesting place, in the immediate vicinity of the canal, but plan to cross if you want to approach the abbey because it is located on the opposite bank to the Vélodyssée track.

Translated by Google •

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54.8 km

Lock No. 138 of Bon Repos

Highlight • Bridge

The 18th century canal lock has been shaped like a medieval bridge fitting to the old Abby, with a hostel in the old canal keeper's house, and a café on the opposite side from the Abby.

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63.4 km

Plélauff lock on the Nantes–Brest Canal

Highlight • Other

One of the many locks on the canal near the village of Pléalauff. Just after, the bridge allowing you to cross the canal and reach the wash house. All on the Vélodyssée route.

Translated by Google •

Tip by

81.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

45.9 km

31.3 km

3.98 km

496 m

< 100 m

Surfaces

45.9 km

25.7 km

10.1 km

< 100 m

Elevation

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

Highest point (270 m)

Lowest point (60 m)

Weather

Sunday 17 May

13°C

6°C

65 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Cascade Lock – Bon-Repos Abbey loop from Séglien

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570m

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Cascade Lock – Bon-Repos Abbey loop from Séglien

Guernal lock on the Nantes-Brest canal

Cascade Lock

Stumo lock on the Nantes-Brest canal

Poulhibet lock - Canal de Nantes à Brest

Guerlédan Lock - Nantes to Brest Canal

Bon-Repos Abbey

Lock No. 138 of Bon Repos

Plélauff lock on the Nantes–Brest Canal

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