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

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

Hard

5.0

(5)

riders

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

06:37

129km

670m

Gravel riding

Hard gravel 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: August 25, 2026

Waypoints

Start point

Train Station

Get Directions

27.1 km

Cadoret Lock

Highlight • Structure

Beautiful lock on the Nantes-Brest canal

Translated by Google •

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53.8 km

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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65.1 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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67.4 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.

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80.5 km

Poulhibet lock - Canal de Nantes à Brest

Highlight • Other

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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84.2 km

Guerlédan Lock - Nantes to Brest Canal

Highlight • Monument

Last locks before reaching the barrage

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99.0 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.

Tip by

99.2 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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129 km

End point

Train Station

Way Types & Surfaces

Way Types

53.4 km

50.2 km

20.1 km

3.31 km

2.70 km

Surfaces

50.3 km

48.8 km

25.7 km

3.73 km

813 m

Elevation

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

Highest point (200 m)

Lowest point (40 m)

Weather

Monday 24 August

25°C

14°C

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

Cadoret Lock

Locks 79 to 87 - Around Saint-Gérand

Cascade Lock

Guernal lock on the Nantes-Brest canal

Poulhibet lock - Canal de Nantes à Brest

Guerlédan Lock - Nantes to Brest Canal

Lock No. 138 of Bon Repos

Bon-Repos Abbey

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