Red Water
Karahayıt's emblem — a travertine outflow that iron oxide stains in tones of red, orange and brown; local folk regard it as healing.
Where the Colour Comes From
The colour of the Red Water comes from iron dissolved in the thermal water. The water emerges from its source at 50–60 °C; when it reaches the surface and meets the oxygen in the air, the iron oxidises and leaves a reddish-brown deposit. This deposit builds up layer by layer together with the calcium-carbonate travertine.
These coloured terraces, formed over time, present the exact opposite of Pamukkale's snow-white travertines. Seeing both white and red travertine at two nearby points within the same area is the chief feature that makes Karahayıt special. Alongside iron, the water's composition also includes calcium, magnesium and sulphur.
Visiting and Belief
The Red Water is a small spring area in the centre of the town and can be seen easily; right around the spring there are channels of hot water you can dip your feet into. There is a widespread local belief that this water is good for skin problems and rheumatic complaints; this is a traditional belief and does not constitute medical advice.
The site is within walking distance of the town's thermal hotels and spa pools; after seeing the red travertines, the visit can be rounded off with a thermal break or with the red-water mud bath particular to the area.