Police discovered marijuana growing around the Queenstown area during an aerial drug-busting operation with the New Zealand Air Force last week.
About eight police officers were involved in the operation using an New Zealand Air Force Iroquois helicopter to help them locate and seize cannabis plants around Queenstown and Arrowtown.
Detective sergeant Grahme Bartlett said "a quantity" of cannabis had been found growing in the Queenstown area.
No arrests had been made.