An ice cave is any type of natural cave (most commonly lava tubes or limestone caves) that contains significant amounts of perennial (year-round) ice.
At least a portion of the cave must have a temperature below 0 °C (32 °F) all year round, and water must have traveled into the cave’s cold zone.
Hidden in the mountains of China’s Shanxi Province, the Ningwu ice caves stay frozen all year.
The cave is 85m deep and set into the side of a mountain more than 2,000m above sea level. Undoubtedly, the sight is dazzling, but is it unique.
These caves, dating back more than three million years, boast icefalls and walls stretching hundreds of feet below the surface. Come explore this spectacular frozen sanctuary.
Ningwu ice cave in China looks like a real-life replica of the interior of Elsa’s mystical castle in Disney – and remarkably manages to stay frozen for the duration of the summer, even when temperatures outside climb to 17C.