Underwater Myths & Legends Uncovered: Drain the Oceans | MEGA EPISODE | National Geographic

Dive into the world's greatest underwater myths and legends in this National Geographic MEGA EPISODE of Drain the Oceans. The special pulls the plug on the planet's most mysterious bodies of water to reveal what lies beneath. It explores Egypt's sunken city, an ancient Egyptian city buried beneath the Mediterranean waves, and the Sea of Secrets, where the Black Sea’s mythic past and three wrecks unlock its mysteries. The episode also examines Loch Ness, using over a century of data and military‑grade scanning equipment to uncover the monster within. Finally, it follows the myth of the Pacific pirate ship, where fragments of porcelain and beeswax lead to a 250‑year‑old wreck and a forgotten trade route of vast cargo ships in the Pacific.