I’ve never been to New Zealand. But years ago read the book Hunter For Hire by a man named Rex Forrester. Great book, I thought. I’m sure I would enjoy New Zealand.
Amazing country - went to Canterbury for a semester back in 1997 or so - was focused on flyfishing back then and caught some monster trout. Made it back for Tahr and Red a few years ago, really enjoyed it and hope to go again while I'm still fit enough!