Karahayit Hot Springs The thermal waters and mud in Karahayıt Hot Springs (Karahayıt Kaplıcaları) are used to treat many diseases. The source that creates red, green, and white-colored layers because of its mineral oxides has an attractive appearance. The thermal water and mud coming from the main source at all times of the year is 58 °C and it is a unique health resource with its rich mineral content. Unlike white-hued Pamukkale travertines, this can be counted among Denizli’s most must-see places as it has a particularly striking view of red travertine. You should definitely visit Karahayit Hot Springs when you are in Denizli.