The lake is 138.3 meters long, 42 meters wide, and holds 8,335 cubic meters of hot, mineral-rich water. Czech researchers confirmed the existence of the world's largest underground thermal lake, named ...

A man skates on a maintained icy track on the vast frozen surface of the Lipno dam near the village of Frymburk, Czech Republic, Friday, Feb. 10, 2017. This year's unusually cold winter has turned a ...

It was a career-high for a record low. Free-diver David Vencl set a Guinness World Record Tuesday after taking a 170-foot, or 52.1-meter, icy plunge below Switzerland’s Lake Sils — without a wetsuit.

Add Yahoo as a preferred source to see more of our stories on Google. A man skates on a maintained icy track on the vast frozen surface of the Lipno dam near the village of Frymburk, Czech Republic, ...

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