Diving into deep underwater caves is not unlike climbing high peaks. It is extremely dangerous, the divers need to go slow and get acclimated, and they often have to carry their gear with them in order to reach increasingly greater depths. This video takes us into one such cave located near the town of Hranice in the Czech Republic as a team of divers attempts to prove that the Hranická Propast is the deepest underwater cave on the planet. So far, they have gone down as low as 384 meters (1259 feet), which is just 8 meters shy of the record held by a cave in Italy. In this clip, you’ll join them as they take us into another world that is submerged beneath the Earth’s surface. A place that is as difficult and demanding as just about any other on the planet.
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