Swimming In An Iceberg Is Like Being Inside The Fortress Of Solitude

Swimming in an iceberg is like being inside the Fortress of Solitude

Swimming inside an iceberg looks amazing because the ice looks like glass and that's crazy, and because it kind of resembles an underwater version of Superman's Fortress of Solitude. Or at least, like a crystal palace. National Geographic shows us how a free diver explores the ice cold waters below.

The first minute and a half talk about how our bodies naturally drop our pulse while underwater, while the second half shows the spectacular view underneath.

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