3.0
(1)
16
riders
Kerdiston lake – The Glomel Cut loop from Plévin
03:15
68.6km
760m
Road cycling
Moderate road ride. 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: May 14, 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 55.5 km for 449 m
After 56.2 km for 2.67 km
Waypoints
Start point
Bus stop
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17.4 km
Bois de Mezle
Forest
55.7 km
Kerdiston lake
Highlight • Lake
Tip by
55.9 km
Great Trench of the Nantes to Brest Canal
Highlight • Monument
The Grande Trenche of the Canal from Nantes to Brest was dug in the 19th century by deserters from the army of Louis XVIII. The 4000 convicts of Glomel had to move as much earth and rock as was necessary for the construction of a great pyramid in Egypt. It took 9 years to create this trench, more than 3 kilometers long, 100 meters wide and 23 meters deep.
Translated by Google •
Tip by
56.5 km
The Glomel Cut
Highlight (Segment) • Monument
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
68.6 km
End point
Bus stop
Way Types & Surfaces
Way Types
62.2 km
2.28 km
1.89 km
1.31 km
990 m
Surfaces
64.2 km
1.66 km
1.46 km
1.36 km
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Elevation
Highest point (290 m)
Lowest point (120 m)
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Weather
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Saturday 23 May
30°C
16°C
-- %
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.