About
There are 17 spring water sources in the Pamukkale area. But this spring water contains biocarbonite and calcium minerals. When biocarbonite meets oxygen, it simply flies away, but the calcium remains on the floor. That's why the formation is white. According to the archaeologist, this formation dates back 400,000 years. It took about 14,000 years to reach this state. And it continues to grow 4 cm per year. This area and the ancient city of Hierapolis have been protected by UNESCO since 1988.