The third largest of the Ionian Isles, Zakinthos is most famous for its isolated “Shipwreck Beach,” accessible only by boat. The shining white pebble beach ignites the turquoise color of the sea, as it does in the numerous small caves around Cape Skinari, again only seen from a small boat. Between Skinari and the mountain village of Keri are fantastic rock arches and other bizarre formations. The town is curved around a large harbor, and guarded by an old Venetian castle with panoramic views of the town and harbor.