Kastos is located close to larger and long-established boating and holiday home destinations such as Ithaca, Kefalonia, Lefkada and Meganissi; it is separated from its neighbouring island of Kalamos by a deep channel. Just eight kilometres long and, even at its widest, only 1,200 metres across, Kastos has a huge appeal to all forms of boating and yachting enthusiasts. Port Kastos, the main harbour, offers safe mooring and has several tavernas. To the south of Kastos there are bays and inlets that are perfect for nautical exploration and overnight mooring alike.