Vist the Seaworld Nara Resort web page.. You can get a package that includes entry to the big 3, Seaworld, Movieworld and DreamWorld. I took my kids to Seaworld and stayed over night, best decision ever.. When they start to whine about sore legs etc, you can just go back to the room, kick back, go for a swim ( its a bit cool atm, but okay if you`re Victorian ) and recoup lost energy.. We did it over the xmas holidays so I coulda gone to Vanuatu with what it cost, but off peak - winter might be cheaper. For little kids, a drive to Brissy and Lone Pine Koala Sanctuary is absolutely worth it.. My 9 yr old loves koala`s so we go there a few times a year.. I like it cause it`s not too dear, it`s relaxed and its has some decent animal shows, like a sheep dog demo and a bird of prey show.