Geothermal action, Rotorua
The Rotorua geothermal field contains around 1200 geothermal features, including geysers, hot springs, mud pools and fumaroles. In a geothermal field, rainwater runs through cracks in rocks towards an underground heat source, getting hotter as it descends. It then rises to the surface to create the visible phenomena that have made Rotorua so famous.
Photo credit: Chris McLennan
Rotorua