jääluola
Jääluola is the Finnish word for ice cave. These natural formations are caves in which ice persists year-round. Ice caves are found in various parts of the world, typically in regions with cold climates or at high altitudes. The formation of an ice cave often depends on specific geological and climatic conditions that allow for the accumulation and retention of ice.
One common type of ice cave forms in lava tubes where cold air sinks and gets trapped,
The ice formations within these caves can be spectacular, including icicles, ice curtains, and frozen waterfalls.