We would highly recommend flying to Milford Sound with Glenorchy Air. We flew as a family with our boys of 10 and 7 and we were very well looked after from our pick up in the morning until we were dropped back in the afternoon. We flew in an 8-seater and the flight was absolutely stunning. Our pilot Hayden gave us plenty of information about the lakes, mountains and glaciers. The flight was about 35 mins and was pretty smooth except for a few small bumps.
We toured Milford Sound on one of the bigger boats which was all organised by Glenorchy Air. It was a beautiful tour which lasted about 1 hour and 45 minutes. Make sure you take plenty of warm clothes, as you will want to be on the top deck and it does get cold. We saw seals and dolphins and took some spectacular photos of the scenery.
Milford Sound is spectacular, but I'm not sure we would have enjoyed it so much with a 5 hour drive each way. Flying is expensive, but it really was a once-in-a-lifetime experience that we would highly recommend.
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