The Glomel Cut – Châteauneuf-du-Faou loop from Guernéac'h

The Glomel Cut – Châteauneuf-du-Faou loop from Guernéac'h

Hard

riders

The Glomel Cut – Châteauneuf-du-Faou loop from Guernéac'h

05:26

112km

1,050m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: September 26, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 26.2 km for 3.67 km

After 30.1 km for 2.83 km

After 33.4 km for 10.6 km

After 79.7 km for 122 m

Waypoints

Start point

Bus stop

Get Directions

27.9 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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29.2 km

Étang de Trébel

Lake

30.4 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 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.

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33.9 km

Minguen lock climbing, Canal Nantes à Brest

Highlight • Other

50.1 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.

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81.1 km

Climb of Château de Trévarez

Highlight • Climb

There it warms the thighs well. And it seems endless! But that’s what it’s good for 😁
If you want to take a break, you can visit the castle and its park.

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83.9 km

Châteauneuf-du-Faou

Highlight • Castle

Bathed by the Alder, the town of Châteauneuf-du-Faou is an ideal stopover on the Nantes-Brest canal. Below, a campsite and a bistro await you. If you want more, you can always tackle the steep climb that brings you downtown. The shops are more numerous there and, on Thursday afternoon, the weekly market is held there.

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85.8 km

Bois de Kermoal

Forest

90.7 km

Nantes to Brest Canal

Highlight • River

Departed from the Carhaix Canal to Châteauneuf du Faou.

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112 km

End point

Bus stop

Way Types & Surfaces

Way Types

37.7 km

34.6 km

21.2 km

16.7 km

1.22 km

691 m

Surfaces

92.2 km

16.6 km

2.62 km

670 m

Elevation

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

Highest point (290 m)

Lowest point (40 m)

Weather

Today

Thursday 22 October

13°C

8°C

96 %

Additional weather tips

Max wind speed: 48.0 km/h

to get more detailed weather forecasts along your route

Comments

June 18, 2025,Sortie à vélo sur route

Hello,
Leaving in the sunshine ☀️, heading for the canal.
The path, strewn with potholes at times, wasn't very pleasant.
Despite the monotony, it's pleasant to ride along the canal path, often shaded and quiet.
This canal, built between 1811 and 1842, served to connect Nantes to Brest by inland waterway, for strategic and economic reasons, notably to avoid shipping …

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