Hello Railwaylass, it would appear we are on the same cruise. Hobbiton was a place I also would like to see. It appears to be about 2 hours from Auckland. I don't see why a private operator could not get you there, spend a few hours and get back to ship. We are in port about 12 hours. All this said, I, with my wife, would be interested in the excursion if we could get it put together.
Don't recall you on the Roll Call, If not, join. We may get one or two more couples. Think keeping it a small group is the best.
Let me know.
John