There a number of agencies providing datasets via web services, one of the main problems is simply finding them. If you know of one that is useful to NZ QGIS users, please add it here, so others can find and use it.

 

Service

type(s)

AgencyDescriptionURL
WMTSNIWA

River Environment classification v2.0 800,000 freshwater reaches throughout NZ

non-queryable attractive WMTS layer

http://gis.niwa.co.nz/arcgis/rest/services/HYDRO/REC_rivers_lakes/MapServer/WMTS?
WMSNIWA

River Environment classification v2.0 800,000 freshwater reaches throughout NZ

queryable WMS layer

http://gs.niwa.co.nz/rec/wms