These natural swimming pools are formed by volcanic lava, naturally filled with crystal-clear sea water—a highlight of the village of Porto Moniz.pic.twitter.com/xf9eM3AbqB

These natural swimming pools are formed by volcanic lava, naturally filled with crystal-clear sea water—a highlight of the village of Porto Moniz. pic.twitter.com/xf9eM3AbqB

https://twitter.com/NatGeoTravel/status/967534825182781440