More of a pool than a cave. I prefer the name “the Devil’s bathtub” than it’s official name. This was the last pool on the amazing walk around the Wai-O-Tapu thermal wonderland near Rotorua. The English translation of the Maori name is “sacred waters” and the pools have seemingly unnatural colours. This pool in particular looks like something you would see on an episode of The Simpsons outside Mr Burn’s power plant. Needless to say, I saw no three eyed fish in this water!