Mersin province is rich in thermal springs. Many of them flow into mountain rivers, which makes swimming in mineralized mountain water possible all year round. For example, in the town of Doctor un Iri you can swim all year round; the water is rich in radon and calcium. People come here to treat the musculoskeletal system, joints, mountain trout fishing, swimming in the river, or just family and friendly picnics. Famous hot springs with water temperatures up to 60 degrees are Ichel-Guneysu, Guneyyolu, Tarsus Akchakoja, Tarsus Keshbuku, Silifike Saparja, Mut-Khojanty are just a few of them.

One of the popular thermal spas is "Çelikhan", located at a distance of 70 km from Mersin. Here, among the gorge surrounded by coniferous mountains, there are a number of sanatoriums. You can stay there, rent a room, swim in thermal waters with a temperature of +45 degrees, take a steam bath in a Turkish hammam, get over 20 types of massage, or just take a walk through the pine forests.