Silifke is a municipality and district of Mersin Province, Turkey. Its area is 2,692 km², and its population is 132,665. It is 80 km west of the city o…Silifke is a municipality and district of Mersin Province, Turkey. Its area is 2,692 km², and its population is 132,665. It is 80 km west of the city of Mersin, on the west end of the Çukurova plain. Silifke lies on the Göksu River, the ancient Calycadnus, near its outlet into the Mediterranean. The river flows from the nearby Taurus Mountains and the city is surrounded by attractive countryside along its banks.