Thanks for the suggestions. If we find we need a car, we will hire one, but trying to go without We are flying up so if we decide on a car, we will grab it at the airport. The holiday is mainly just for us to spend time as a family. My Dad lives with us, and all our holidays for the last 3 years have either been with other people, or visiting family, so just the 4 of us is very rare..

Kuranda is only for the train ride on the old train, and maybe the butterfly sanctuary.. DH works for QR so we get heavily discounted tickets on the train, which is why we are also training it back to Brisbane via a few nights in Townsville with family (yes I know it is a loooong trip, but we have done Brisbane to Townsville twice, once was on my own with the kids)..

Think I am going to have to google Muddies, a few people have mentioned it. And also any other kid friendly things to do much appreciated.. DD is 5 and DS is 3, nearly 4 when we go up.