Ten years ago I worked as a park ranger in Qld, I worked on Fraser Island on and off. Lake MCKenzie is the most famous lake there. To be honest I'd rather be chasing a stinly old boar somewhere. Some of the scenery is VERY easy on the eye
https://www.google.com.au/search?q=lake+mckenzie+fraser+island&rlz=1C1CHMD_enAU556AU556&espv=210&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=TnYZU6ORPIq8kgXunoBY&ved=0CCsQsAQ