Came across this article regarding a $90 Million waterpark development on the Sunshine Coast, which boasts one of the World's largest wave pools...
http://www.abc.net.au/news/2015-01-28/sunshine-coast-council-considers-90m-water-park/6051450?section=qld
Council to vote on "mammoth sized" water park for Coast
Full article here: http://www.sunshinecoastdaily.com.au/news/support-for-giant-water-park-grows/2517715/
Looks like the original proposal was in July last year so it may have been mentioned in another thread.