Spetses Island, the Argosaronic.
By boat: In addition to an (all-weather) car and pas senger ferry which runs daily from Piraeus to Spetses in summer, and 5 times weekly in the winter, Spetses has typically 3 connections a day by Hydrofoil and three by fast Catamaran, which ply the route from Piraeus to Spetses via Poros, Hydra and Ermioni, and on to Porto Heli. All these vessels are run by Hellenic Seaways (www.hellenicsea ways.gr). For the reduced services of the faster vessels between mid-October and Easter, which can sometimes be suspended in bad weather, it is best to visit the company”s web-site. The 15-min crossing from Kosta on the mainland opposite Spetses is made by the car-ferry, Katerina Star, 4 times daily, leaving Kosta at 8, 10.30, 1.20 and 5.
Note: private cars belonging to non residents on the island are not allowed on Spetses.