Northport is navigable through a completely buoyed and lit channel 5 nautical miles long leading from the Fairway Buoy to Marsden Point. The approach to Marsden Point has a shallowest depth of 14.7m at chart datum between the Fairway Buoy and No 1 buoy.

scale: 1:18000 
File reference: NZ521501.tif 
Data published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ).

scale: 1:50000
File reference: NZ521901.tif 
Data published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ).

scale: 1:18000
File reference: NZ521401.tif 
Data published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ).

The chart identifies the distances to and from Northport, Marsden Point and all other New Zealand ports. All distances are in nautical miles (nm)