LINZ Hydrographic Charts (download 31/08/2017) from https://data.linz.govt.nz.
THIS DATA DOES NOT REPLACE NAUTICAL CHARTS AND MUST NOT TO BE USED FOR NAVIGATION.
The hydrographic raster data made available through the LINZ Data Service is based on the Paper Navigational Charts published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ).
The online New Zealand Chart Catalogue provides more detailed and the most up to date information about New Zealand charts: New Zealand Chart Catalogue http://www.linz.govt.nz/hydro/charts/nz202-chart-catalogue
Information on symbols and abbreviations used on nautical charts: Symbols and Abbreviations http://www.linz.govt.nz/hydro/charts/chart-symbols-terms-abbreviations
Hydrographic standards and specifications for nautical charts and publications: Standards and Specifications http://www.linz.govt.nz/hydro/regulation/