A fantastic day. Once in, almost everything is free. Pay only for "professional photos" and $1 for kangaroo feed. While you do have to pay $20ish to hold a koala for a photo, you can have unlimited photos taken of you by another person. When I was last there I took over 100 shots of my friends while they held and shared the koala. Feeding the kangaroos is fantastic! You don't want to go when it is too hot, as they are sleepy in the heat. Food here is also reasonably priced, less than what you pay for in the CBD. Free parking, or better yet, catch the CityCat or jump on a bus.