Travertine is sediment rocks formed as a result of the precipitation of calcium element as limestone, which is dissolved in hot water at points where hot springs are located. The carbon dioxide gas contained in hot water sources dissolves the calcium in the limestones it touches while leaving the earth, causing the water to become calcified. Hot water that comes into contact with the air after it comes to the earth starts to cool rapidly and as a result, the dissolved calcium in the water precipitates and forms limestones. Travertines have a very delicate and fragile structure due to the sedimentary rocks groove. Unlike Pamukkale, Karahayıt thermal waters are not white but red waters. 7 km from Pamukkale. Karahayıt thermal springs, located at a distance, form red travertines as a result of mineral oxidation (such as iron, magnesium, etc.) rather than calcium. Because of this red colored water and rocks, it is called “Red Water” among the people. The temperature at the source of red water is approximately 60 C. Both hot springs (Pamukkale and Karahayıt) have been used for centuries for supportive treatment of various health problems with their rich mineral content and radioactivity. Success has been achieved in the complementary treatments of orthopedic (skeletal system) and neurological (nervous system) disorders with bath applications from past to present. It has been shown to provide medium-term relief and improvements in the rehabilitation of rheumatic diseases, sciatica, lumbar and neck hernia, arthritis, post-plaster supportive treatment, skin diseases, gynecological disorders and all stress-related diseases. Gastric and esophageal ailments, osteoporosis and the treatment of calcium deficiency can be mentioned among the disorders that can be treated with supportive water.