Volcano monitoring staff have used technology and "simple Kiwi ingenuity" to take the pulse of an active volcano in a unique way.
GNS Science used a drone, or UAV (unmanned aerial vehicle), to collect water samples from Whakaari/White Island's crater lake last month.
Whakaari/White Island is New Zealand's most active volcano, situated 48km off the Bay of Plenty coast, and the most extreme environment where GNS staff work.
The volcano's crater lake is a witch's brew of bubbling, hot and acidic fluid that is far more acidic than battery acid. It has a lake temperature of around 60-70C with a pH of around -1.0.