Sam
South Island ▷ Queenstown Region ▷ Queenstown Township ▷
Good value really - easy walking to the centre of Queenstown, and can park there all day for about $35.
Get in early, park in a camping spot, pay parking til 6pm and you can spend all day in town and wall back to your van.
Mid may and they're all full before 6pm - don't bother with the official capacity checking site, as absolutely no-one seems to check in.
Minus 1 star because they're all on a bit of a slight slope.