Inside an ice cave in Olkhon island in the heart of Russia’s Lake Baikal.
The icicles are formed as the waves bash against the cave, and curved by the strong winds.
Crowned the “Jewel of Siberia”, Baikal is the world’s deepest lake, and the biggest lake by volume, holding 20% of the world’s fresh water. In the winter, the lake 31,722 square meter surface is entirely frozen with ice averaging 2 meters thick.