Some of the world�s best cave divers have travelled to the Bahamas Islands to plunge into the unique abyss found in blue holes �underwater caves that can go hundreds or even thousands of feet down and feature a maze of passages and tunnels, which act as liquid time capsules.Led by National Geographic emerging explorer and anthropologist Kenny Broad, a team of divers and archaeologists investigate these caves to unlock the mysteries of an ancient Bahamas teeming with life that quickly vanished, leaving the islands now mostly barren.

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