I park on beach rd just before p. ormond when i sail at elwood, not great to rig there but its ok and free. I generally go to elwood for a seabreeze forcast ssw and it is usually stronger than the south end of the bay. If launching from here it is best to get upwind towards the yacht club in case the wind drops out so you can stay clear of the rocks at the point. Or pay to park at the yacht club and rig on the nice grass to start with. Great spot Ive had some of my best summer sails there. Also some people sail of head st.
Also lots of nice scenery to look at

Hope this helps.