Check out www.gtp.gr and www.openseas.gr for ferry schedules. Three ferries a week stop at Folegandros on the Santorini-Folegandros-Sikinos-Ios-Naxos-Paros-Piraeus route; it's about 10 hours from Piraeus to Folegandros. Information is available at the Piraeus Port Authority (tel. 210/451-1311 or 210/451-1440 or -1441), which seldom answers the phone. Boats are notoriously late and/or early; your travel or ticket agent will give you an estimate of times involved in the following journeys. Several ferries per week stop on the Folegandros-Milos-Sifnos-Paros-Mykonos-Tinos-Siros hydrofoil run. During the off-season, infrequent service and bad weather can easily keep you here longer than you intend. Folegandros Port Police are at tel. 22860/41-530.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.