Puzzle-Motiv: Glacial Cave
Fascinating and somewhat mysterious this glacial cave appears with its snow and ice sculptures. Surrounded by a small lake, only the dark blue color of the water shows the depths underneath. Though glacial caves need an average temperature of zero degree Celsius, you can also find them in temperate climate zones with higher surface temperatures. In Germany, the only accessible glacial cave is the Schellenberger Eishöhle in the Alps.