Good job on the sesh @lhan - nice pair of flatties. I frequent Rushcutter's (5 mins away or so) and it's pretty fruitful, especially at night 1-2 hours before and 1 hours after the high tide. The sand flats on the the left hand side of the creek produce nice whiting, bream and flathead. The pontoon holds yakkas (burley up), with bream at times as well. The stretch of path on the left hand side of the marina holds many bream and flatties as well. I have also found that if you see the bream (or mullet or whiting), they won't bite. They only bite if you cast out with lures or bait.
Hope this helps. Feel free to PM me if you want any extra info.