Open Question: Want to know of some "secret camping spots" near the Sunshine coast?

Im wanting to know of any hidden or secret camping spots around Caboolture, Nambour, Buderim etc. Something near a creek/waterfall would be awesome!!

Something similar to the camping spot in "Tomorrow When The War Began"
Any pointers would be great!
I wouldn't even know where to start looking. I just want a quiet place with no-one around where we can spend a couple of days in summer, swimming and having some fun.

Source:
http://answers.yahoo.com/question/index?qid=20110711055724AARPf6u

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