İDO sails 20 routes between 35 ports in Turkey, Greece and Cyprus, mostly Yalova, Eskihisar and Topçular. From Yalova: Yenikapı and Pendik. From Eskihisar: Topçular. From Bostancı: Yenikapı, Avşa, Esenköy, Ekinlik, Avcılar, Marmara Island and Çınarcık. From Kadıköy: Yenikapı, Bursa (Güzelyalı), Bandırma and Armutlu. From Bursa (Güzelyalı): Yenikapı, Kadıköy, Kabataş and Armutlu. From Eminönü: Harem. From Kuşadası: Patmos, Samos and Pythagorio. From Kyrenia: Taşucu. And from five other ports.