10 Breathtaking Natural Swimming Pools That Will Leave You Speechless

Pamukkale Thermal Pools, Denizli Province, Turkey

Translated as “cotton castle,” Pamukkale Thermal Pools in the Denizli Province of Turkey boast hot springs and travertines that have been used for thermal spa treatments since ancient times. The unique limestone-terraced formations make for a unique swimming and sightseeing experience.