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Routes
France
Brittany

Cascade Lock – Lock No. 138 of Bon Repos loop from Lycée Le Gros Chêne

Routes
France
Brittany

Cascade Lock – Lock No. 138 of Bon Repos loop from Lycée Le Gros Chêne

Hard

4

riders

Cascade Lock – Lock No. 138 of Bon Repos loop from Lycée Le Gros Chêne

08:04

121km

1,860m

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: May 14, 2026

Tips

Cycling is not permitted along parts of this route

After 2.18 km for 186 m

After 68.2 km for 61 m

Waypoints

A

Start point

Bus stop

Get Directions

1

2.43 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 …

Tip by

2

4.67 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

3

7.48 km

Porzo Lock on the Nantes-Brest Canal

Highlight • Structure

4

12.6 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

5

16.3 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

33.7 km

Bois du Quélenec

Forest

7

40.2 km

Brittany wall

Highlight • Settlement

Famous finish line of the Tour de France. Despite everything not very pleasant with a large road and sometimes traffic

Translated by Google •

Tip by

46.4 km

Bois de Caurel

Forest

70.1 km

Allée couverte de Liscuis III

Archaeological Site

10

75.0 km

Gouarec Lock on the Nantes–Brest Canal

Highlight • Structure

Between the Lac de Guerlédan and the double lock of Coat Natous in its section of the Côtes d´Armor, the Canal from Nantes to Brest is navigable upstream of the …

Translated by Google •

Tip by

77.4 km

Allée couverte de Kerivoelen

Archaeological Site

12

83.5 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

B

121 km

End point

Bus stop

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Way Types & Surfaces

Way Types

78.6 km

32.0 km

5.24 km

3.09 km

2.37 km

153 m

Surfaces

46.6 km

37.7 km

19.3 km

17.6 km

266 m

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Elevation

Elevation

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

Highest point (290 m)

Lowest point (60 m)

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Weather

Powered by Foreca

Tuesday 19 May

19°C

11°C

40 %

Additional weather tips

Max wind speed: 20.0 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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