Hirlatzhöhle, Natural monument cave in Hallstatt, Austria.
The Hirlatzhöhle extends through 115 kilometers of passages within the Dachstein mountains, making it the third-longest cave system in Austria.
Initial exploration of the cave began in 1949 when Karl Pilz, Georg Lackner, and Franz Voggenhuber ventured into its passages for scientific documentation.
The Hallstatt-Obertraun Caving Association manages this protected site, which lies within the UNESCO World Heritage region of Hallstatt-Dachstein.
Access to the cave requires special permits and coordination with the caving association, as the entrance remains locked throughout the year.
The cave system reaches a depth of 1559 meters and contains six entrances, with three accessible only through underwater passages.
Location: Hallstatt
GPS coordinates: 47.54520,13.63240
Latest update: May 17, 2025 10:52
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