DH and I go at least once a year and my best suggestion? Go on a Tuesday (or at least a weekday) when there are less people there. If you go on a weekend or even a Monday or Friday, you will spend most of the day queuing up for the rides.

Dreamworld is my favourite theme park. You wont be disappointed. Some people make some sandwiches the night before, freeze them and take them with them for lunch. Your kids can have these for lunch and maybe have some hot chips or a hot dog or fairy floss at some stage as a treat.