We went to nz south island in january and it was fab. The weather was lovely - altho cold and rainy on the afternoon we arrived, the rest of the days were beautiful. We spent 5 nights/6 days and hired a car. We did a little bit of driving but it was very cruisy. Some great food/produce and lots of beautiful scenery. The jet boats are fun and we visited a seal colony. If we could afford it, i'd be tempted to go back again this summer!

I i think you could do it within budget. Not a swim up bar sort of place but still sone great ****tails!!