Agree with above, you can also try walking from Apple Tree bay along the track, where there are more rock platforms. Often you can find squid in the bays further around from Apple Tree.
All around that area you will probably pick up a few yakka's and mullet if you put out the right rig. It's worth putting out a couple of livies, both top and bottom can be interesting.
You do get the "rare" Salmon and Big Tailor cruising through. Livies mostly get left alone by the small tailor, although if bleeding can get demolished.
Growing up in Turramurra and still having family there, I've spent nearly 30 years plugging away on and off down there. Lots of small stuff but the occasional excitement. I've even seen one old guy catch and "release" a metre and a half of rather angry shark very early one morning!
If you have the patience and gear, blackies are one reliable fish. (and hats off to Luderick fisher-folk!)
Great spot if you have kids to teach em the basics!
Mike