Thassos is a green, mountainous island ringed by beaches, and its calling card is water clarity: much of the coast is backed by marble, which gives the sea a bright turquoise cast. The most striking example is Marble Beach, a shore of smooth white marble pebbles near Limenas. The long golden sand sits on the east coast at Golden Beach, the quieter sand and snorkelling is on the south around Paradise Beach, and the southwest holds the old mining-town beaches near Limenaria. Browse every verified beach on the island on Thassos.
Thassos is easy to circle by car on a single ring road, so you can sample more than one coast in a day. This is a curated best-of rather than the full list; the island faces open sea on most sides, so wind direction matters more than season. Pick a beach below, then use each beach page for parking and access detail before you go.