The last time I drove past, there were large areas fenced off and most of the scrubs have been removed......so it's quite safe now to bend over

You might be better off driving 5 more minutes and rig up at La Perouse. Due to the weather on Saturday, there will be no parking issues. Rig on the lawn and nice to launch from a sandy beach. You can sail over to Kurnell or alternatively, if you don't mind driving a little further, go to Kurnell and sail over there.