Under the broawater parklands jetty holds a few big ones at times, as does the edges of the seaway walls where the rocks meet the sand. Horseshoe flats, and the flats opposite the grand hotel boat ramp is also worth a cast. I haven’t chased flatties for years though so the info might be a little out of date.
That report I posted the other week with the big lizard print…that was west wave break flats there were also numerous smaller male prints within 5m of it…who knows maybe shes still there a couple of weeks later! haha good luck with the classis