A hot spring near the Mutnovksy volcano in Russia'...  ...ssia's Kamchatka peninsula cut a path through the ice of a glacier. The roof of the resulting cave is c...  ...s of it, you can see the sunlight penetrating the ice

A selection of ice caves from around the world, from the largest in German...  ...?). One of the strange facts about some of these caves is that the ice does not melt in the summer, but it does in the w...  ...not everything but let’s start with the largest *strong class=...