Karahayit Hot Springs Karahayit Hot Springs, located in Denizli, is renowned for its thermal waters and mud, which are used for the treatment of various diseases. The main source of the hot springs, which produces layers of red, green, and white due to mineral oxides, is visually stunning. The thermal water and mud from the main source are available throughout the year and have a unique health value due to their high mineral content. Unlike the white-colored Pamukkale travertines, the red-colored travertine in Karahayit is a must-see attraction in Denizli. If you are visiting Denizli, be sure to include a visit to Karahayit Hot Springs on your itinerary.