Highlight • Structure
Spiral Tunnel No. 20
Hiking
5.0
(249)
Mountaineering
5.0
(3)
Running
5.0
(1)
Tips
Roger Eggenberger 🐾👣
July 13, 2025
Hiking
Probably the most impressive tunnel. Simply crazy!
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Klemens
November 19, 2023
Hiking
"A few meters away (note: after the 318 m long 19th tunnel) begins the 20th tunnel, which also rises in a spectacular spiral through a rock tower to almost below …
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Details
Informations
Elevation 1,680 m
Weather
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Friday 6 November
6°C
2°C
49 %
Additional weather tips
There’s a fairly high chance of rain. Consider packing a waterproof jacket.
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