Thanks for the tips RhiChiChi! We weren't planning on taking a pram as MrsNB has a couple, so I figured if we needed one we could borrow one. Otherwise I was planning on taking my baby carrier for DD.

All that stuff for the plane sounds good. Will definitely try feeding DD as we take off and land. DS will be most excited about getting a lolly, lol.

We're staying with MrsNB who is on the sunshine coast (Caboolture I think), so will be north of Brisbane most of the trip anyway. I'll look into Underwater World, thanks!

Anyone else have any tips?