New Zealand bathymetry

This dataset provides the most up-to-date bathymetry of one of the largest areas of deep-water seabed under national jurisdiction.

The 250m resolution gridded bathymetric data set encompasses New Zealand's Exclusive Economic Zone and is available in multiple high-resolution file formats to suit a range of imagery and mapping needs.

Before you can download the high resolution data, we need you to agree to our terms and conditions, and let us know what sector you work in.

Our terms and conditions

 NIWAs high resolution Multibeam and Seismic coverage around New Zealand is available via the Coastal and Marine Data portal.

Alternatively, go to our charts and posters to view and purchase printed copies.


NIWA's bathymetry has revealed that, beneath the surface, Cook Strait still bears the scars of a turbulent past – more than 150 underwater landslides have so far been mapped. Credit: Dave Allen


New Zealand Bathymetry (NIWA)


Annotated NZ 250m gridded bathymetric imagery, CANZ (2008) with either undersea feature names or (Exclusive Economic Zone) EEZ. An exclusive economic zone (EEZ) is a marine area prescribed by the United Nations Convention on the Law of the Sea over which a state has special rights over the exploration and use of marine resources, including energy production from water and wind.

New Zealand Bathymetry : medium.jpg

A bathymetric image compiled from of the NZ 250m gridded bathymetric data set, CANZ (2008) and The Centenary Edition of the GEBCO Digital Atlas, 2003.

Hauraki poster 594 x 785 (13_3_12)

Hauraki Gulf gridded bathymetric dataset and imagery, Mackay et al. (2012).