In reply to Helen R:
Agree re Emirates, just a shame about the tacit acceptance of UAE that comes with flying through there. But easy flights, the A380s are quiet and comfy, the departure airport coverage in the UK works pretty well. Bear in mind even if you go first class with Emirates the AKL to ZQN leg will be on their partner JetStar, which is a lot more EasyJet-esque.
(twit alert) I haven't actually flown economy on Emirates but at the pointy end the bag allowance is good - 2x32kg plus carry on (x2) and an extra bag with their higher tier frequent flyer. This is an airline that has first class suites with an onboard hot shower in a dedicated bathroom and somewhere to store your falcon in flight. It's really rather nice up there but (i) there's a risk of becoming an entitled a-hole and (ii) we are surely stuffed as a species if we need to have a ten minute shower at 30,000ft and can't wait until actually back on the ground, nice as it was.
In Y it depends on fare class - bargain bin is 20kg, saver 25, Flex 30 and Flex+ 35kg. Additional bags are "relatively" cheap - I think on the day price is USD250 per bag but if purchased in advance it's about half that, which makes it reasonable. Also make sure your sign on for Skywards as although you might not get a huge amount of miles from this trip they show willing to the airline and usually help when luggage is a tickle over the allowance
Everything that has been used outdoors needs to be amazingly clean and scrubbed - even then it will all be inspected and disinfected. Just go to your zen place and let them do what they need. Allow plenty of time in AKL to clear biosecurity with climbing and tramping gear - if you had 3-4hrs that would be ok but less than that you will run the risk of missing connections. It's more efficient now than previously but pack a sense of humour that still works after 24hrs on economy flights. They are particularly keen on getting grass seeds out of the tongue and lacing on your mountain boots and remove them all with tweezers if they are there. They are often quite happy to chat about tramping and the outdoors while they do so. You will just want to stop travelling and lie down but look upon it as a challenge
Have a great trip.... lots of friends in Wanaka, although it's pretty expensive these days. The mountains remain spectacular.
b