Information about the port of Kos
Kos has daily connections to all the Dodecanese islands and Piraeus and regular boats to the Cyclades. There is also ferry service weekly to Samos and Thessaloniki. There are available routes from Kos to Bodrum in Turkey.
Information about the port of Rhodes
Various ferries of all sizes depart daily to connect Rhodes with the rest of the Dodecanese islands, Crete, Cyclades and of course Piraeus.