Old blockhouse – The hundred-step tunnel loop from Port-la-Nouvelle
Old blockhouse – The hundred-step tunnel loop from Port-la-Nouvelle
4.5
(2)
19
hikers
Old blockhouse – The hundred-step tunnel loop from Port-la-Nouvelle
02:40
9.50km
190m
Hiking
Moderate hike. Good fitness required. Easily walkable paths. The starting point of the route is accessible with public transport.
Last updated: September 9, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Bus stop
1.13 km
Old blockhouse
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8.48 km
The hundred-step tunnel
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Tip by
9.50 km
End point
Bus stop
Way Types & Surfaces
Way Types
6.55 km
2.35 km
501 m
117 m
Surfaces
7.94 km
1.07 km
429 m
< 100 m
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Highest point (90 m)
Lowest point (0 m)
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Thursday 29 October
20°C
11°C
0 %
Additional weather tips
Max wind speed: 9.0 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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