​Discover the Shoshone Indian Ice Caves, a National Historic Site and the largest Lava Ice Cave known.  This geologic natural wonder was created when molten lava seeped across the top layer of the earth and melted a "river" for miles through the earth's crust leaving behind an empty "tube", eventually filling the bottom of the caves with seep water.  At a temperature of 28 degrees Fahrenheit year round, the Ice Caves remain frozen for spectacular views and pictures.  

In the early days of our National Parks System, this location was used to train some of the very first National Park Guides offering tours to the public.  Now, this popular tourist attraction educates and fascinates geology enthusiasts and people from all over the world as they step down into the icy caves full of magic and wonder.