Join a private guide to explore the largest ice caves in the world the werfen ice caves eisriesenwelt on this private tour from salzburg travel by luxury minivan through the salzach valley to the idyllic village of werfen crowned by hohenwerfen castle and step inside the werfen ice caves on a guided walking tour marvel at the deep caverns and towering ice figures and learn how the caves were discovered and why they were once avoided by locals entrance fees not included