Most people think of warm climes with turquoise waters, schools of fish and colorful corals when they hear the word "diving".

A literally cooler version of the underwater hobby is diving under ice. For lovers of this extreme sport, what counts on the one hand is the view up through the ice, which reveals completely new vistas of the surrounding landscapes. On the other hand, visibility of up to 50 m is possible in the mountain lakes, allowing the diver to experience magically enraptured places that nature otherwise keeps hidden.