Franck Goddio is founder of the French IEASM (European Institute for Underwater Archaeology) and discoverer of the city of Herakleion-Thonis 7 km off the Egyptian shore in Aboukir Bay. He also led the excavation of the submerged site of Eastern Canopus and of Antirhodos in the ancient harbour of Alexandria (Portus Magnus). Aurelia Masson-Berghoff is Project Curator, British Museum, Department: Greece and Rome.