The first thing you need to do in Sydney, is visit the tower. I wish I had done this when I first arrived in Australia.
The thing is, you cant really appreciate Sydney, nor get your Sydney bearings without going up there. Obviously its not going to make you "know" Sydney, but this gave me an immediate idea of where to go, how much waterway there was and identified the main tourist sites etc.
The view is stupendous. It's not busy in the week and there are a couple of things todo. You can go to the enclosed viewing platform, go right up top outside or use the restaurant. The viewing platform also has some snacks and souveniers(if your into that).
Its a quick trip - 45 minutes at the most if you are just viewing.
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