Mersin 2026 Guide: Kızkalesi, Tarsus & Cilicia

Mersin is Türkiye's largest Mediterranean port and the centre of a 100 km coastal strip between Silifke and Adana that contains a castle standing in the sea, two Roman cities on the shoulder of the highway, the birthplace of St Paul and a pair of vast collapsed sinkholes known as Heaven and Hell. Domestic tourists know it well. Foreign itineraries skip it almost entirely, which keeps the sites empty. Quick answer: how to use Mersin Do not base yourself in Mersin city — it is a working port. Base at Kızkalesi , halfway along the coast, and use it for two or three nights. From there everything is within an hour: Tarsus east, Silifke and the caves west, Roman ruins on both sides, and the Taurus mountains behind. Fly into Adana (70 minutes east) and drive. Kızkalesi — the castle in the sea Two castles face each other here. Korykos Castle sits on the shore; Kızkalesi , the Maiden's Castle, stands on an island 200 m offshore, built by the Armenian Kingdom of Cilicia in the 12th century on Byzantine foundations. In summer, boats run continuously and strong swimmers simply swim out. The legend — a king told his daughter would die by snakebite, a castle built on water to prevent it, a snake arriving in a fruit basket — is the same one attached to Kız Kulesi in Istanbul, and the locals here insist theirs is the original. The beach between the two castles is sand, shallow and family-friendly, and in July and August it is full of Turkish families rather than international package tourists. Place From Kızkalesi What it is Elaiussa Sebaste 3 km Roman city with theatre, basilica and necropolis, right by the road Cennet ve Cehennem 7 km Heaven and Hell sinkholes; 452 steps down to a 5th-century chapel Kanlıdivane 15 km Ancient Kanytelis around a 60 m chasm with rock reliefs Silifke and Uzuncaburç 25–50 km Crusader castle; Hellenistic temple city of Diocaesarea in the hills Tarsus 60 km St Paul''s birthplace, his well, Roman road, Cleopatra''s Gate Mersin city 60 km Marina, seafront