After you do please do the flight from Quenstown to Milford. Following the lake, then find a path through the mountains. It always brings a smile to my face.
My wife and daughter also did the flight from Quenstown to Milford with me. They still try to embarrass me with the story of when the pilot ask who wants to sit up front next to him, I actually I pushed aside all others to get to the front.
Best wishes
Bob