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

Routes

Bike touring routes & trails

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

Hard

4.8

(41)

229

riders

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

04:26

71.2km

530m

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: June 21, 2026

Waypoints

Start point

Bus stop

Get Directions

775 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…

Translated by Google •

Tip by

7.63 km

Towpath of the Nantes to Brest Canal

Highlight (Segment) • Trail

New cafe just on the way out of Pontivy owned by a very friendly and helpful gentleman with lots of experience and tips. He will soon have a bike repair station too! Top!

Tip by

12.0 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 walkway across the barrage and the locks to shortcut to the other side.

Tip by

14.3 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 •

Tip by

23.7 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.

Tip by

27.4 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 •

Tip by

31.1 km

Guerlédan Lock - Nantes to Brest Canal

Highlight • Monument

Last locks before reaching the barrage

Tip by

45.7 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

71.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

29.9 km

28.0 km

12.0 km

1.35 km

< 100 m

Surfaces

34.4 km

29.7 km

7.18 km

Elevation

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

Highest point (210 m)

Lowest point (50 m)

Weather

Thursday 9 July

33°C

18°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

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Comments

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

Locks 79 to 87 - Around Saint-Gérand

Towpath of the Nantes to Brest Canal

Cascade Lock

Guernal lock on the Nantes-Brest canal

Stumo 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

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