Cascade Lock – Lock No. 138 of Bon Repos loop from Saint-Gérand

Bike touring routes & trails

Cascade Lock – Lock No. 138 of Bon Repos loop from Saint-Gérand

Hard

4.8

(45)

250

riders

Cascade Lock – Lock No. 138 of Bon Repos loop from Saint-Gérand

04:27

71.6km

520m

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: September 26, 2026

Waypoints

Start point

Train Station

Get Directions

976 m

Locks 79 to 87 - Around Saint-Gérand

Highlight (Segment) • Other

Sequence of nine locks, seven of which are very close to each other. Boat traffic must have been very slow on this section…

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5.89 km

Ècluse de Kervégan

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Romantic historic canal locks at the small village of Le Roz

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12.2 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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14.5 km

Guernal lock on the Nantes-Brest canal

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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.

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23.9 km

Stumo lock on the Nantes-Brest canal

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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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27.6 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!

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31.3 km

Guerlédan Lock - Nantes to Brest Canal

Highlight • Monument

Last locks before reaching the barrage

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45.9 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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71.6 km

End point

Train Station

Way Types & Surfaces

Way Types