Travel by Ship & Ferry in Turkey
 

Turkey is surrounded by water, which makes ships and yachts a good way to get around.

Several Turkish ports of call are popular with cruise ships.

Many Istanbul region and Sea of Marmara routes are served by Istanbul Deniz Otobüsleri A.S. (IDO), a private company that operates fast catamaran car ferries and passenger ferries. Click here for yacht charters.

SEA OF MARMARA
Fast, sleek IDO catamaran ferries zoom across the Sea of Marmara from Istanbul's Yenikapi Feribot Terminali to Güzelyali (for Bursa), to Yalova (for Iznik and Bursa), and to Bandirma (for Çanakkale and Izmir).

DARDANELLES/GALLIPOLI
Car ferries cross the ancient Hellespont (Çanakkale Bogazi) between Eceabat on the Gallipoli Peninsula and Çanakkale, and Gelibolu and Lapseki, with some additional service between Çanakkale and Kilitbahir.

ISTANBUL-IZMIR
The once-popular overnight car ferry sailings between Istanbul and Izmir have ended. No more Istanbul-Izmir ferries!

ISTANBUL-BODRUM
Semi-weekly mini-cruises by car ferry from Istanbul to Bodrum and return.

BLACK SEA COAST
Ferry service from Istanbul to Trabzon and Rize stopping at Sinop and Samsun is not currently in operation. Let's hope it begins again soon.

ISTANBUL-ODESSA (UKRAINE)
Weekly ferries departing Istanbul on Tuesday, Odessa on Saturday.

ÇESME (IZMIR)-ITALY: In summer several car-and-passenger services operate between Çesme (the port west of Izmir), and Brindisi and Ancona in Italy.

TURKEY-CYPRUS: Ferries also cross to Turkish Cyprus from several cities along Turkey's Mediterranean coast, including Alanya, Mersin and Tasucu (Silifke).

GREEK ISLANDS: Feries and passenger catamarans connect Greece's Aegean islands with the Turkish mainland, providing frequent service in summer, and useful (but less frequent) service year-round.  

Source : http://www.turkeytravelplanner.com/trans/Ship/index.html