Hello, we are going to Christchurch for our honeymoon from 28 Dec - 8 Jan. Planning to do some leisure self driving in the South Islands. Initially, we are planning to do a round trip from Christchurch to Queenstown (Christchurch - Lake Takapo - Mt Cook - Queenstown - Te Anau - Milford - Wanaka - Fox - Punakaiki - Christchurch), but I am afraid that there will be too much driving (husband driving alone as I can't drive) and too tiring. So we are considering doing a one way drive trip from Christchurch to Queenstown and taking a domestic flight from Queenstown to Christchurch for our international flight out. Is that a good idea? What domestic flights can we take? Appreciate your advices, thanks!