Pamukkale is a Unesco World Heritage site. Travertines are precipitated rocks formed by various chemical reactions. They are filled with this water and it seems like a cotton pond. You can walk in these small pools and feel the soft sand under your feet. It is beautiful.
You can swim in a warm water with a view of antique Roman columns.
Don't forget to visit the museum
We-Su: 08:00-17:00