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Ice cave

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.

Usage examples of "ice cave".

The air felt warm and the dry sand was very warm in contrast to the ice cave.

That was for a car out on Europa's frigid surface, and Camille would gain a little more time than that because the ambient temperature in her ice cave was higher.

They took me through the icy labyrinth of her lair at a quick march, and up an endless flight of stairs that eventually emerged into a sort of ice cave, a space between the rock and the glacier.

The darkness inside the ice cave congealed down to a nearly solid black.

The fiend's fires raged, turning the ice cave into a sloshing quagmire.

Pitt had insisted Evie use his skis at the ice cave, but she had indignantly refused.