ancient egyptian pleasure boat portus magnus 2725487

Underwater archaeologist Franck Goddio and his Institut Européen d’Archéologie Sous-Marine (IEASM) team have discovered the remains of a 35-meter-long ancient Egyptian pleasure boat, known as a thalamagos, in the submerged Portus Magnus off Alexandria’s harbor. The 28-meter preserved timbers, found seven meters underwater and buried under sediment, represent the first physical evidence of such vessels, previously known only from ancient texts like Strabo's Geography and the Nile mosaic at Palestrina. The ship, built in Alexandria and propelled by oars, features a central pavilion and Greek graffiti from the 1st century C.E., and may have sunk around 50 C.E. during the destruction of the temple of Isis on Antirhodos Island.