A heap of Geelong crew sail there regular.
Launch from Queencliff/Lonsdale yacht club. Good on any direction that doesn't have South in it.
If blowing East launching on south side of Swan bay boat ramp near the caravan park is better.
Best to go on high tide to access large areas of flat water over the tops of the shallow sand banks, but can also be good on low tide and in between finding flat water in the shallow channels between the sand bars. Weed Fins recommended.