More than 70% of the Earth's surface is covered by ocean. Until 2020, people managed to explore only about 5% of them. Imagine what might lie beyond our reach: depths we have never encountered before, or a lost megalodon from prehistoric times. It is also possible that the remains of a ship that disappeared long ago, or the lost city of Atlantis, are waiting for us there. Or maybe something dark and dangerous, who knows?
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