Tips
COSW
August 28, 2025
Hiking
Access is easily doable from the hiking trail with a bit of scrambling. Don't forget your water shoes. There are two entrances: from the Niolon direction, the entrance is by sea, and from the Mejan direction, it's by land. Access from the Zoellnerweg trail is about a three-minute walk. The entrances are easily recognizable.
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Nearby routes
Best routes near Underwater grotto
4.7
(18)
188
hikers
10.8km
03:18
330m
330m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
Hard
4.9
(10)
241
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
Easy
4.9
(14)
60
hikers
4.15km
01:17
140m
140m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
Easy
Details
Informations
Elevation 70 m
Weather
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Thursday 9 July
31°C
24°C
15 %
Additional weather tips
Max wind speed: 20.0 km/h
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