Great video, Bruce! It's funny because that is exactly where I went for my first flight except I flew it the other way! I started at the city, flew out the bay bridge to the island, off to Alcatraz, and then to the Golden Gate. And FYI, you can fly through the archways on both the Golden Gate and bay bridges. It's a trip with all the suspension wires going by.
Alcatraz looks very different, though. What scenery are you running? Yours is much more detailed. I tried to land on the flat area that you first approached in your video but it wasn't solid for me. Just dropped through.
But great video and it looked like a lot of fun! And I agree - multiplayer in those ought to be a blast!