Journey through the mysterious underwater world of Earth's longest river! The Nile has witnessed human civilization for millennia, but what secrets lie beneath its dark waters? Discover the submerged treasures of Alexandria including remnants of the legendary Pharos Lighthouse and Cleopatra's palace with its sphinxes and statues. Explore the lost city of Thonis-Heracleion, a bustling port that vanished underwater around 800 CE, now revealing 700 anchors, gold coins, and a massive 5-meter statue