Hi Jane,
Hopefully I can provide a bit more information for you….
Before you leave the UK, you can pre-book the following trips:
Hobbiton movie set
Walter Peak cruise and dinner in Queenstown
Dart River excursion
Stargazing and dinner
Then, while you are away you can book the following in resort, I have explained in brackets why this is in resort only, where you can pay by credit card and the from price (based on 2017 departures);
The Rainbow Springs (may clash with a pre-bookable excursion, price from £56)
Walter Peak cruise (may clash with a pre-bookable excursion, price from £33)
Jet Boat ride (recommended that traveller speaks with Tour Manager before booking this excursion, price from £72)
Mt Tarawera Floatplane/Helicopter (weather dependent, can be paid by credit card, price from £132/£221)
Glacier Helicopter (weather dependent, can be paid by credit card, price from £177)
Mount Cook Flight (weather dependent, can be paid by credit card, price from £236)
I have been advised that if there are any excursions that you would like to take that are bookable in resort, there are plenty of ATMs if you would prefer to withdraw cash while you are overseas rather than taking it with you.
I hope this information helps,
Kindest regards,
Amy