Culture Minister Lina Mendoni and other officials attended the ceremony on Saturday.
“This wreck lies 21-28 meters deep near the shores of Peristera islet and contains 3,000 to 4,000 amphorae,” Maria Agalou, president of the Alonissos city council, told Skai TV.
The treasure of two-handled vases is believed to be one of the most important of its kind as most of them are intact. They were found by a fisherman in 1985.
The large merchant ship is said to have sunk due to bad weather around 425 BC. It was carrying thousands of wine amphoras from Chalkidiki to northern Greece and the island of Skopelos, Pari Kalamara, director of the Ephorate of Underwater Antiquities, told Greek television station ERT.
“The amphorae reveal the shape of the ancient ship. It was a big ship, ”she said.
“We offer humanity the Parthenon of the shipwrecks,” said Kostas Agorastos, governor of the Thessaly region on the island of Alonissos.
Authorities plan to open four more ancient wrecks in the area to amateur divers, with the aim of creating a dive park that will attract more tourists.