The Koç Setur Marinas group company started its operations in 1978 with the Çeşme Altınyunus marina. Setur Marinas, which is one of the numbered chain companies in the Mediterranean area in the marine sector, is also the leading port chain in Turkey. Setur Marinas, which operates a total of 10 marinas including Kalamış / Fenerbahçe, Yalova, Ayvalık, Midilli, Çeşme, Kuşadası, Marmaris, Kaş, Finike and Antalya, is the most important brand supporting the growth of the port sector in Turkey.