The government of New Zealand is making changes to evaluate the full scale of cruise ship sector and its impact on the country.
They have called in Ministry of Business Innovation & Employment to measure the effect voyages are having on the economy.
New Zealand sees 230,000 cruise passengers visiting its shores each season, spending just under half a billion dollars during their stays.
These numbers have the government keen to get on board where in the past, passengers who didn't come through an airport were left off travel statistics.
Cruise ship passengers now represent the third largest market of holiday arrivals in New Zealand. However there is some concern within the industry that larger cruises with more people would require better infrastructure.
Both ports are now exploring expansion options for berthing which tourism bodies say will buoy up passenger spending.