Tourist wet her feet at one of the pools at Pamukkale. The hard, white mineral deposits, which from a distance resemble snow, are caused by the high mineral content of the natural spring water which runs down the cliff and congregates in warm pools on the terraces. This is such a popular tourist attraction that strict rules had to be established in order to preserve its beauty, which include the fact that visitors may no longer walk on the terraces. Those who want to enjoy the thermal waters, however, can take a dip in the nearby pool, littered with fragments of marble pillars.
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