I spent 16 days with a girlfriend on the South Island back in '83. She was not a keeper but the fact that I spent 14 of those days fishing may have been a determining factor. Hell, I suppose it was better to expose my angling devotion early to clarify the order of things.
Anyway, we landed in Auckland, took a connection to Wellington and connected again to Nelson. I remember being taken aback in the Wellington airport during the wait for the flight to Nelson when I picked up a local newspaper and a front page headline screamed "Car Stolen." I had a feeling I was in the right kind of place. We fished the Buller River the first day and, it being February, I fished shirtless in my bootfoot, Converse rubber waders throughout the day. That was my introduction to sand flies and I didn't make the same mistake again. Some welts lasted for months and itched the entire time.
We made our way down the west side through Haast, Wanaka, Queenstown and Te Anau ending up in Invercargill. Lots of incredible water and met the most welcoming and sincerely friendly people that I have ever encountered. Just a wonderful trip and the fish did not disappoint- no guides but I had some very good information from Jim Poor (Angler's All founder who spent time down there yearly).
Did you encounter any of the big, black eels while you were fishing? I had a duel with one while releasing my biggest fish of the trip. Had I known then what was later disclosed to me about their aggressiveness, I would not have stayed junk deep in the water fending it off. Met a couple of older guys at the Wyndam Anglers Club (oldest in NZ- est 1895) who were missing fingers from eel interludes.
Glad you had a nice trip and congrats, again, on the marriage.