When Spyros visits his grandfather on the island, somewhere between many swims and searches through old chests, he hears stories about the sea: about beaches where pirates hide, about seafaring explorers, about the life of sailors, about the underwater world and fishing, as well as naval battles and the greatest shipwrecks. He learns when people started vacationing by the sea, and why trade from ancient times until today is done by ships. He also hears stories about Vikings and Chinese, shipowners and exiles, ports and lighthouses, fish and sponges, sails and engines... and a lot of salt. However, there is also a danger that he will have to face…