Tomorrow Sydney celebrates the 75th birthday of the bridge. They're closing the road lanes for the whole day so people can walk over the bridge as a reenactment of the opening back in 1932. 200,000 people have registered to do the walk. I was too slow and so didn't register. However, I do intend to go into the city by train and participate in the celebration from The Rocks.
It could be a great time and lots of fun... I hope so.