Petrified Forest, no no, not from Slytherin's basilisk just from Jurassic ash and whatnot

"A very curious place, Curio Bay has a fossil forest that dates back to the Jurassic period. The fossilised trees you can see here were alive around 180 million years ago, when New Zealand was part of the Gondwanaland super continent. Scientists have identified tree ferns, cycads and trees which resemble New Zealand kauri and matai." -NewZealand.com