I've found 6 self guided tours to New Zealand

Independent Naturally New Zealand with Fiji

Independent Best of Australia & New Zealand

Fly to the Outback, where you’ll see the sunrise at Uluru & enjoy drinks & canapés while watching the sunset at Kata Tjuta.

Independent Naturally New Zealand with Sydney

Independent Australian & New Zealand Explorer

Visit Agrodome to learn about New Zealand’s sheep industry,Te Puia to explore a geothermal wonderland and much more!

Independent Best of Australia & New Zealand with Fiji

Independent Australian & New Zealand Explorer with Fiji

Visit one of Australia's opal companies or see the penguins emerge from the sea in the famous Penguin Parade, & much more!