Te Puna Quarry Park has lost tens of thousands of dollars worth of equipment in a break-in during the weekend.
Dulcie Artus, the secretary for the park's incorporated society, said the break-in happened on Saturday or Sunday and a "wild guess" of the losses was about $25,000.
Among the stolen items included a Suzuki mini truck, a ride-on Masport mower, several chainsaws and weed eaters, a generator, an arc welder and various other tools.