The world’s biggest ice cave is the site of fascinating ice sculptures and is one of the most popular sightseeing attractions in Salzburg!
Werfen’s “World of Ice Giants” is actually the world’s biggest ice cave: The cave system extends more than 42 km deep into the mountain. The first section, about a kilometer in length, features imposing ice formations and is open to the public. Since it is a protected natural monument, development of the cave has been painstakingly cautious in order to preserve its unique natural beauty and ecosystem.
Stepping through the imposing cave entrance, 20 meters wide and 18 high, you enter a mysterious world of ice. Aside from its enormous dimensions, the cave impresses with its ice palaces of crystalline beauty. Monumental formations glisten to amazing effect in the light of the traditional mine lamps which are issued to visitors. Winding passageways and galleries with evocative names such “Diamond Kingdom” lead you deeper and deeper into the mountain.
https://www.salzburg.info/en/sights/excursions/ice-caves-in-werfen