Rose W.
Yelp
I love this beach as it's quiet and has a great view of the Sydney Harbour Bridge and Opera House. It's a little annoying to get to as there's stairs but you can push the stroller/pram down the grassy hill. It's a two man job though. You can park for free on the street then walk down the long driveway.
It is close to a high school and boats so expect a few of them around but they keep to themselves. Unfortunately one of them threw a beer bottle in the water and so there can be broken glass.
I recommend bringing lunch like takeaway fish and chips, lots of water and a bottle of wine and just relaxing when you get here. You can also bring shade like a beach tent or umbrella.