Wayne, I'd head up to Narrabeen lake..by the sounds of it, there's a good chance you'll catch something.
One of the raiders - Marky posted this report recently:
http://www.fishraider.com.au/Invision/index.php?showtopic=60791&st=0&p=427798&hl=narrabeen&fromsearch=1entry427798
Other than that, I fish out of botany bay (land based) which is child friendly but may not be as productive as Narrabeen.
Dan..