ALL ABOUT FERRIES IN GREECE
Boat travel in Greece is common and relatively inexpensive. Timetables change according to seasonal demand and boats may be delayed by weather conditions, so your plans should be flexible. That being said, ferries/hydrofoils for the Greek Islands only operate between May and September due to annual weather changes including rough seas and high winds. For travel beyond these months, your itinerary will include transportation by flight between the islands.