The Big Drop – Down by the river loop from Gravigny Balizy
The Big Drop – Down by the river loop from Gravigny Balizy
4.5
(2)
8
riders
02:58
43.9km
490m
Mountain biking
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.
Last updated: August 27, 2026
Tips
Includes a segment that is highly dangerous
A part of this route comprises highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.
After 25.6 km for 50 m
Waypoints
Start point
Train Station
12.9 km
Étang
Lake
17.3 km
Highlight • MTB Park
Tip by
18.2 km
Highlight • MTB Park
Translated by Google •
Tip by
19.4 km
Highlight • Other
Translated by Google •
Tip by
20.2 km
Réserve biologique intégrale de Verrières
Nature Reserve
21.8 km
Highlight (Segment) • Trail
Translated by Google •
Tip by
24.7 km
La Batterie de Bièvres
Ruins
25.0 km
Highlight • Trail
Translated by Google •
Tip by
25.7 km
Highlight • Trail
27.0 km
Highlight (Segment) • Trail
Translated by Google •
Tip by
27.8 km
Highlight (Segment) • Other
Translated by Google •
Tip by
43.9 km
End point
Train Station
Way Types & Surfaces
Way Types
19.3 km
12.0 km
4.73 km
3.97 km
3.40 km
420 m
114 m
Surfaces
26.9 km
8.75 km
3.00 km
2.35 km
2.13 km
812 m
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Highest point (170 m)
Lowest point (40 m)
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Sign up for freeWeather
Powered by Foreca
Tuesday 20 October
14°C
7°C
87 %
Additional weather tips
Max wind speed: 27.0 km/h
to get more detailed weather forecasts along your route
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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