We are recently off the Mercury to Aust/NZ. I posted a couple of replies to questions on the Celebrity thread and the host suggested I check in here, too. We had a great time, in spite of the looong flights over and back. I would be happy to answer questions for future Australia/NZ cruisers. Our itinerary included:
Sydney 2 nights-- 1 hotel and 1 on ship
Sea--Milford, Doubtful and Dusky Sounds
Sea--Volcanic White Island
Aukland--2 extra nights here in hotel.
While on the cruise we booked a S. Carib. cruise for next Jan. It's always nice to have something to look forward to.