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Can't help with the north coast. I have driven up that way many times and often thought about a fishing trip along that part of the coast.

For the Sydney area, most beaches are pretty good. Funny thing is that most Sydney-siders think to catch fish they need to head north or south. This of course leaves Sydney relatively un-fished.

Avoid the popular beaches like Bondi and Coogee...why would you want to go there when all the other beaches are relatively empty !

The harbour is good. Anywhere east of the bridge. If boating watch out for traffic. The harbour and Botany Bay can both get very rough very quick. Anywhere east of Spit Bridge is good. There are lots of sandy beaches in the harbour and all produce good fish.

I wouldn't eat or even try to catch anything in or near the Cooks River. This includes a lot of Botany Bay. On the other side, Kurnell is quite good.

Port Hacking fishes well.

Heading south...Most beaches along the south coast fish very well. I would avoid Port Kembla around the steel works. But MM beach and Fishermans beach (near the school) fish very well.

Bass Point is now open to fishing ! It's reserve notice was lifted a few weeks ago. The fish using the area as a breeding ground simply don't use the area anymore and so there is no need for it to continue as a protected area.

Any further south brings you in to the Shoalhaven where I live !...and as if I would tell a Sydney-sider where the fish are 😊 😊