Story: Charting the sea floor All images & media From page 1 – Making and using charts Southern Port, 1809 Lachlan survey Bay of Islands Approaches to Auckland From page 2 – First charts of New Zealand Abel Tasman's Staten Landt James Cook's New Zealand Port Nicholson (Wellington Harbour) The Acheron (1st of 2) ‘HMS the Acheron’ (2nd of 2) From page 3 – Evolution of modern charting Depth-recording equipment Bathymetric chart, 1960 Learning about the ocean floor Undersea New Zealand From page 4 – Multibeam echo sounding Multibeam surveying Mapping submarine volcanoes
