I would like to quickly romp over some of the science we have done since 2002 in the Greater Tarawera catchment, focusing on results. I hope to give people a flavour of what we think is going on in each of the 8 lakes in the catchment:- • The greater Tarawera catchment • Purpose of Tarawera project • Overview of scientific results - drilling and some early results - geological model - catchment hydrology of the 8 lakes - groundwater flow - nitrogen generation an