No further work was done in the area until the 1950s when Nicholas Platon, then Director of Antiquities in Crete and Director of the Heraklion Museum, carried out rescue operations and small trial excavations along the coastal plain opposite Mochlos. In 1955 he excavated a round tholos tomb, of a type normally found in the Mesara in southern Crete, at Galana Charakia a short distance below Myrsini. It held pottery of the EM III, MM IA and MM IB phases. He also reported Minoan buildings of uncertain character at Chalinomouri at the eastern end of the plain and at Palia Vardia, also below Myrsini. He excavated an important cemetery of Mycenaean chamber tombs at Aspropilia and reported still other chamber tombs at Plakalona and Keratidi. Athanasia Kanta studied the finds from Aspropilia in 1980 and dated the pottery to the LM IIIA, IIIB and IIIC phases. In 1955, J. Leatham and Sinclair Hood carried out underwater exploration along the coast between Mochlos and Crete. They discovered a fish tank along the Cretan coast, which they believed to be Roman, which provided evidence for a rise in sea level of 1 - 2 m. since the Roman period, good support for Seager's suggestion that the island and plain were connected by a low isthmus of land during the Bronze Age.