Skiathos is the closest to the mainland of the Sporades Islands. It is 41 nautical miles away from the capital of the prefecture of Magnesia, Volos and just 2.4 miles from the shores of southern Pelion, east you can Skopelos at about 6 nautical miles, south Evia from which is 16 nm and north you can find Thermaikos gulf which is 95 nautical miles away. from Thessaloniki. The area of the island is 48 sq. Km.

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