It depends when people are getting in. If people are in early enough or the night before, I suggest meeting at the Ferry Building at 11:00 AM. It's a short walk from there to the pier.
If we don't meet up before the cruise, we should get together for sail-away at the "secret" viewing deck. On to the Caribe Deck, head to cabin C201. There's a door at the end of the hallway. Go through the door, and it leads to a small deck right below the bridge. It's a great place to be for the sail through the Golden Gate.