Welcome to the forums and the overlanding community. I have great memories of my time backpacking around Australia just over a decade ago. Queensland was a favorite state for me and Fraser Island was my first and only chance in Australia to drive a four wheel drive vehicle as part of an offroad tour. It's an amazing and very beautiful island. I never got stuck in the sand while driving along 75 Mile Beach, which was a bit soft going at times. The fact that we all survived the experience is something of a miracle!