Lock No. 138 of Bon Repos – The Glomel Cut loop from Langonnet

Routes

Bike touring routes & trails

Lock No. 138 of Bon Repos – The Glomel Cut loop from Langonnet

Hard

4.8

(5)

riders

Lock No. 138 of Bon Repos – The Glomel Cut loop from Langonnet

11:05

175km

1,080m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 22, 2026

Tips

Includes a segment in which cycling is not permitted

After 133 km for 233 m

Waypoints

Start point

Parking

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41.6 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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46.6 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 …

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50.1 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.

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65.5 km

Path between two bodies of water on the Nantes-Brest Canal

Highlight • Trail

A stretch on the dam before the Trehu Moron dam.
The landscape is constantly changing. The canal meanders through the countryside here.
I love this landscape, and it's a good mood to drive here.

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66.8 km

Étang de Trébel

Lake

68.0 km

The Glomel Cut

Highlight (Segment) • Monument

This passage is the highest point of the canal. It was necessary to dig three million cubic meters of earth and rock to make the canal pass: as much as …

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81.0 km

Kerhun Lock No. 191 on the Nantes–Brest Canal

Highlight • Structure

Beautifully restored former lock guardian's house, now perhaps private.

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87.6 km

Stone Arch Bridge on the Nantes–Brest Canal

Highlight • Bridge

Small bridge whose arc forms a semicircle, and whose reflection perfectly completes the circle. A beautiful shot to take along the Vélodyssée greenway.

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98.2 km

Bois de Conveau

Forest

115 km

Greenway, former Guiscriff station

Highlight • Cycleway

As proof that the greenway from Roscoff to Concarneau is established on a former strategic commercial and tourist route. here you will find a museum and some explanations.

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