I spent 3 nights on Magnetic or (as the locals call it) Maggie Island at a camp ground/hostel called Bungalow Bay which has a Koala Sanctuary built on the premises. On the daily they give tours where you can interact with animals ranging from crocodiles and lizards to cockatiels and echidnas. But the big draw is the opportunity to hold and have your picture taken with a koala bear. You have to stand still like a tree and cradle the fuzzy little creature to avoid stressing it out, since they are used to living very sedentary lives, but the experience is purely magical and goes by in a flash. While my koala was a little smelly, his fur was incredibly soft and I could have cuddled him forever.
Everything about Maggie Island was amazing and magical. It is definitely a place to get lost in, and I wish I could have stayed longer...but Fraser Island awaits!