Had a lovely day at Gibb's Farm on the Kaipara Harbour - acres of manicured farmland and so many incredible sculptures. You can see by the size of the people how enormous this one is. Designed by Anish Kapoor, it is 85 metres long - this end is 25m x 8m.
@jods Yes it is well worth a look around. The farm is open to the public once a month (excluding winter) and is free. You have to book way ahead as it is so popular.