According to Heritage New Zealand, there are more than 2500 shipwrecks in New Zealand's marine and fresh waters.
Of those, only about 200 have been accurately located.
Bill Day is a shipwreck expert. He's spent 36 years searching for the wreck of the General Grant in the Auckland Islands and he joined Kerre Woodham.
LISTEN ABOVE

Chris Pugsley: Historian slams culture ministry for axing Heritage Trails website for Gallipoli
09:47

Kerre Woodham: The entire fuel situation is a mess
06:14

Hera Eruera: Certified Plumber at Auckland Plumbers Group on the job and lack of women in trades
08:35