Some useful resources for GIS professionals.
An open access geospatial data repository for the Pacific Region providing premier geophysical, geodetic, and marine spatial data sets, developed through collaboration between the GeoScience, Energy and Maritime Division of the Pacific Community (SPC), University of Sydney, Geoscience Australia (GA), and GRID-Arendal.
LRIS Portal - Manaaki Whenua - Landcare Research
To access these datasets currently requires approval from data owners MAFFF Tonga priorto permissions for online access being granted.
GEOINT New Zealand Data Service
New Zealand Defence Force Geospatial Intelligence Data Service includes publically available data for the Multi-national Geospatial Co-production Program (MGCP) coalition of over 30 countries dedicated to producing high-resolution topographic vector data throughout high interest areas of the world.