Airport-area caches are popular with those with some spare time before a flight, so I thought I'd look to place a few more.
This cache is in the Dakota Park development, which according to the airport's website is "Christchurch Airport’s 80-hectare freight and logistics precinct with direct air and land connections to wherever you need to be". With easy access to the airport, and state highways leading, north, south and west, that seems like a reasonable claim. I think development of the area started in the late 2000's or early 2010's. While a number of sites have been developed, there's lots of vacant blocks as well. Freight and logistics seems like a sensible use of the area (a bonus to the airport company is the "occupants" aren't going to complain about aircraft noise at night).
The cache is attached to a round plastic cover placed on top of a dis-used sign-post hole (it is easy to spot). GPS reception wasn't great at GZ (not sure why). The cache is less than a metre from the kerb, and a few metres from a power transformer. There are no parking lines in most of Dakota Park (the parking area nearby is for trucks only). I've added coordinates for what I think is the closest parking. Given this is a commercial area, it's best to visit during daylight hours.