Lock No. 138 of Bon Repos – Bon-Repos Abbey loop from Carhaix

Bike touring routes & trails

Lock No. 138 of Bon Repos – Bon-Repos Abbey loop from Carhaix

Hard

4.6

(69)

422

riders

Lock No. 138 of Bon Repos – Bon-Repos Abbey loop from Carhaix

05:46

89.5km

500m

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: August 24, 2026

Waypoints

Start point

Train Station

Get Directions

16.6 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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18.9 km

Kerdiston lake

Highlight • Lake

The dams for the Canal de Nantes à Brest create a lake from the waters of a little stream, the bike trail passes on the back of the levy

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19.3 km

Étang de Trébel

Lake

44.6 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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44.8 km

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.

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50.0 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 …

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53.6 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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68.9 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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84.5 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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89.5 km

End point

Train Station

Way Types & Surfaces

Way Types

75.3 km

8.16 km

3.45 km

2.13 km

561 m

< 100 m

Surfaces

74.5 km

10.9 km

3.45 km

743 m

102 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 (100 m)

Weather

Tuesday 13 October

19°C

8°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

August 30, 2023,Tour Brest-Nantes Tag 3

This time with more uphill and lots of locks. Went a little faster today too.

Showing Translation

April 24, 2025,Day 2 - Carhaix to Mur de Bretagne - done. 40 miles

Day 2 - Carhaix to Mur de Bretagne - done. 40 miles.

Theme for the day… mostly today was about things beginning with ‘K’ sound … Canals, Kingfishers, Canards (see what I did there!).

We have had a lovely tranquil ride along 40 miles of the Nantes to Brest canal. What a lovely stretch of rural France it is. The …