Two days on Thassos comes down to one loop: history in the morning, sea in the afternoon. Limenas (Thassos Town) is the natural base, with the Ancient Agora of Thasos and the Ancient Theatre of Thasos sitting just up the hillside from the harbor, and the Archaeological Museum of Thassos next door to make sense of the finds. Once the ruins are covered, the island's real draw takes over: Giola Lagoon, a natural rock pool carved into the coastline, and Marble Beach (Saliara), where crushed white stone gives the water an almost unnatural turquoise glow. Together they cover the island's ancient core and its best-known natural landmarks without wasting a single day.