Roche Guyon and Rosny Forest – Senneville Washhouse loop from Mantes Station
Roche Guyon and Rosny Forest – Senneville Washhouse loop from Mantes Station
12
riders
Roche Guyon and Rosny Forest – Senneville Washhouse loop from Mantes Station
03:48
41.0km
740m
Cycling
Hard bike ride. Very good fitness required. Mostly paved surfaces. The starting point of the route is accessible with public transport.
Last updated: November 4, 2026
Tips
Includes very steep uphill segments
You may need to push your bike.
After 12.6 km for 272 m
After 25.5 km for 385 m
Waypoints
Start point
Train Station
870 m
Roche Guyon and Rosny Forest
Highlight • Other
6.27 km
Bois du Sourd
Forest
22.8 km
Senneville Washhouse
Highlight • Structure
Translated by Google •
Tip by
41.0 km
End point
Train Station
Way Types & Surfaces
Way Types
18.7 km
9.00 km
7.96 km
4.66 km
657 m
< 100 m
Surfaces
26.4 km
7.40 km
7.19 km
< 100 m
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Highest point (140 m)
Lowest point (30 m)
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Thursday 5 November
12°C
2°C
0 %
Additional weather tips
Fog is expected during your activity. Consider wearing some high-visibility clothing so you’re easier to see.
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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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