9
riders
Kerdiston lake – Gymnasium in Loudéac loop from Rostrenen
02:18
52.1km
460m
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 right next to a parking lot.
Last updated: August 9, 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 4.86 km for 445 m
After 22.3 km for 1.03 km
Waypoints
Start point
Parking
5.08 km
Kerdiston lake
Highlight • Lake
Tip by
5.30 km
Great Trench of the Nantes to Brest Canal
Highlight • Monument
Translated by Google •
Tip by
22.8 km
Kerhun Lock No. 191 on the Nantes–Brest Canal
Highlight • Structure
Tip by
27.3 km
Gymnasium in Loudéac
Highlight • Rest Area
Tip by
52.1 km
End point
Parking
Way Types & Surfaces
Way Types
36.3 km
13.3 km
1.51 km
977 m
< 100 m
< 100 m
Surfaces
50.5 km
1.47 km
< 100 m
< 100 m
< 100 m
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Sign up for freeElevation
Highest point (290 m)
Lowest point (100 m)
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Sign up for freeWeather
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Thursday 5 November
12°C
2°C
0 %
Additional weather tips
Max wind speed: 7.0 km/h
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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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