The North Island lies on the “ring of fire”. Tongariro, Taupo, Rotorua and the White Island are all part of the Taupo Volcanic Zone, which is one of the most active volcanic area on earth.
On our way to Rotorua we visited three geothermal fields:
Orakei Korako (incl. Rainbow terrace):

Wai-O-Tapu (skipped the famous, but artificial Lady Knox Geyser):

Te Puia (incl. famous Pohutu Geyser, erupting around 20 times per day, up to 30 meters):
