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Kerdiston lake – The Glomel Cut loop from Rostrenen

Routes

Bike touring routes & trails

Kerdiston lake – The Glomel Cut loop from Rostrenen

Moderate

4.5

(36)

269

riders

Kerdiston lake – The Glomel Cut loop from Rostrenen

03:38

56.1km

370m

Cycling

Moderate bike ride. 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 8, 2026

Waypoints

Start point

Bus stop

Get Directions

404 m

Étang de Kampostal

Lake

5.89 km

Pont Yannick Lock on the Nantes–Brest Canal

Highlight • Other

The old lock keeper's house has been converted to a private home, but well maintained.

Tip by

6.05 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.

Translated by Google •

Tip by

6.93 km

Quistinic lock

Highlight • Other

Canoe rental and snack

Translated by Google •

Tip by

7.79 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

Tip by

21.6 km

Kerhun Lock No. 191 on the Nantes–Brest Canal

Highlight • Structure

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

Tip by

25.6 km

Pont Daoulaz lock on the Nantes-Brest canal

Highlight • Bridge

Manual lock, although the guardian's house seems to be given to someone private.

Translated by Google •

Tip by

28.1 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.

Translated by Google •

Tip by

46.2 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 …

Translated by Google •

Tip by

48.9 km

Étang de Trébel

Lake

56.1 km

End point

Bus stop

Way Types & Surfaces

Way Types

32.1 km

12.1 km

4.84 km

3.64 km

3.46 km

Surfaces

31.2 km

17.9 km

4.34 km

2.69 km

Elevation

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

Weather

Sunday 10 May

14°C

7°C

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Kerdiston lake – The Glomel Cut loop from Rostrenen

Pont Yannick Lock on the Nantes–Brest Canal

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

Quistinic lock

Kerdiston lake

Kerhun Lock No. 191 on the Nantes–Brest Canal

Pont Daoulaz lock on the Nantes-Brest canal

Stone Arch Bridge on the Nantes–Brest Canal

The Glomel Cut

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