Bream and flathead apparently Kev.
Lightly weighted yabbies dropped in the shallows and allowed to run/roll into gutters/holes will get 'em going. If you're going to Xtal, see if you can get up to Insulator along the track that winds up behind the pondokkies. It has great yabbie banks and nice 1-2m holes in amongst the sand banks.
Good for grunter too.
But the same would apply for the mouth of Xtal as well - I just haven't fished it
Mozza