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The Glomel Cut – Cascade Lock loop from Langoëlan

Routes

Bike touring routes & trails

The Glomel Cut – Cascade Lock loop from Langoëlan

Hard

4.0

(1)

riders

The Glomel Cut – Cascade Lock loop from Langoëlan

07:45

122km

940m

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: May 13, 2026

Waypoints

Start point

Bus stop

Get Directions

17.8 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

18.7 km

Quistinic lock

Highlight • Other

Canoe rental and snack

Translated by Google •

Tip by

19.6 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

33.4 km

Kerhun Lock No. 191 on the Nantes–Brest Canal

Highlight • Structure

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

Tip by

44.8 km

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 to build the largest pyramid in Egypt!

The work was carried out in the 19th century by deserters imprisoned and sentenced to forced labor. Many did not survive the unimaginable working and hygienic conditions.

A book “Les Bagnards du canal de Nantes à Brest” traces the little-known history of the builders of the canal from Nantes to Brest.

Translated by Google •

Tip by

47.5 km

Étang de Trébel

Lake

87.1 km

Porzo Lock on the Nantes-Brest Canal

Highlight • Structure

89.9 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

92.2 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

118 km

Étang du Grand Rosé

Lake

122 km

End point

Bus stop

Way Types & Surfaces

Way Types

56.6 km

53.3 km

4.43 km

3.78 km

3.64 km

Surfaces

53.3 km

52.5 km

12.2 km

3.61 km

107 m

Elevation

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

Highest point (270 m)

Lowest point (60 m)

Weather

Sunday 24 May

32°C

18°C

0 %

Additional weather tips

Max wind speed: 14.0 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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The Glomel Cut – Cascade Lock loop from Langoëlan

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

Quistinic lock

Kerdiston lake

Kerhun Lock No. 191 on the Nantes–Brest Canal

The Glomel Cut

Porzo Lock on the Nantes-Brest Canal

Guernal lock on the Nantes-Brest canal

Cascade Lock

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