As a tourist who has been coming to the Greek islands for the past 20 years I have always used Ferryscanner to see all the available ferry options to go from the mainland or from an island to another island (or back to the mainland).The website or app are very simple to use. You simply choose the date and the locations you are traveling to and from, and after you find a ferry that suits your travel needs you simply book it with Ferryscanner. This saves time from manually searching all the different ferry providers on your own.
