The railroad tunnel – The lair of Thury Harcourt loop from Aunay-sur-Odon
The railroad tunnel – The lair of Thury Harcourt loop from Aunay-sur-Odon
5.0
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riders
The railroad tunnel – The lair of Thury Harcourt loop from Aunay-sur-Odon
03:55
41.4km
920m
Cycling
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.
Last updated: May 7, 2026
Tips
Includes very steep uphill segments
You may need to push your bike.
After 8.79 km for 317 m
After 12.1 km for 132 m
Waypoints
Start point
Parking
Get Directions
15.8 km
Col Saint-Martin (162 m)
Highlight • Mountain Pass
Translated by Google •
Tip by
21.5 km
Château d'Harcourt
Highlight • Castle
Translated by Google •
Tip by
21.9 km
the railroad tunnel
Highlight • Other
There's more than just tables and benches here, plus a nice place to linger.
Translated by Google •
Tip by
22.7 km
The lair of Thury Harcourt
Highlight • Other
24.0 km
Viewpoint
Viewpoint
41.4 km
End point
Parking
Way Types & Surfaces
Way Types
18.2 km
13.6 km
8.02 km
1.21 km
308 m
< 100 m
Surfaces
26.1 km
10.2 km
4.81 km
216 m
< 100 m
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Elevation
Highest point (290 m)
Lowest point (20 m)
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Weather
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Friday 22 May
27°C
15°C
0 %
Additional weather tips
Max wind speed: 16.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.