When you get there and grab a mooring.

Spit bridge opens at 8:30, 10 and 11:30 before lunch and every 2 hours after lunch.
I plan to get there in time for the 11:30.
Weather on Sunday is looking very iffy thou, SW change coming through about 14:00. The Port Botany guys may be in for a tough afternoon going home. If I leave early on Sunday morning and get the first bridge I will probably be most of the way home by then.
Will make a call on it (for me) later in the week.