Try underneath Captain Cook bridge on the northern side at night on the top of the tide Use larger lures 15cm nilsmasters in a mullet colour are very good They dont need to go deep and a rod that can cast those lures a long way are what you need We used to use beachrods with sidecasts Now would be a good time with a bit of fresh coming down the river and leading up to the full moon
Good luck it is a game of patience and keeping a lure in the water