That time of the year should be tailor, dart, bream and whiting. Plus most likely the odd shovelnose thrown in on the surf beaches.
We stayed in a house at happy valley (few years ago now), it was close to gutters for the mentioned fish, easy to get to them at any tide and worms and pipis were also close. A 10 minute run north or so and you were at the Maheno(spelling??). There were a couple of good gutters around it at the time holding tailor.
Camping I have no idea about. But one lot was just camped in the dunes behind a good gutter. For three days they had great times in the morning and arvo catching good 1.5 - 3 kg tailors.
Cheers
Glenn