✔ 最佳答案
You should go to join the YMCA youth member and you can have discount on going the Backpacker around the world including Australia.
Remember check from the internet, just go and search "Backpacker+Bisbane" or "Backpacker+Gold Coast" You can find a great deal of hotel list, and they are called Backpackers. As Backpackers are much more cheaper than Hotel, for one night, just cost about AU20-30, but for hotel, it costs you like AU 50 or above.
However some of the backpackers have security problem, since you will be staying with like 8 people or more people in a house, so be careful with your stuffs.
Good Luck