Greece has great tradition on shipping. It currently has several shipping companies with modern ships that provide reliable and high quality locomotion. You can access all the Greek islands or directly from the ports of mainland Greece or traveling from island to island, since almost all islands are connected by ferry routes.
The Aegean islands of the Saronic Gulf and Crete served by the ports of Piraeus and Rafina.www.olp.gr/en/
The Ionian Islands are served by the ports of Kyllini, Igoumenitsa and Patra.www.patrasport.gr/