Caves of Sky

Glaciers are the most ephemeral part of the landscape, the only fragments of geology capable of showing changes in the short time of a human life. On the other hand are formed by the accumulation of old snow, and so are the clearest and stable witness to the vicissitudes of weather. It has long been known that the rivers that run on them plunge in the blue depths, getting lost in the depths of the ice, but only recently the glaciospeleologist have learned to follow them, slowly understanding the complex internal structure of glaciers. These caves are of extraordinary beauty, excavated deep into a piece of heaven.