In 1978, three American cave divers entered Lake Vooliogmini and disappeared. The cave network is massive with over 14 different tunnels and has never been fully explored. But that hasn't stopped divers from trying. Over the years, there have been countless stories of divers attempting to map and explore the cave. And there have been countless stories of divers becoming simply lost or disappearing within the system. In 2007, nearly 30 years after the three Americans were lost, a diver entered the cave looking for another missing body, but instead would come across three. After DNA testing, it was confirmed the bodies were those of the three Americans. They would finally all be returned to their families.