When you are in Sydney and you want to have a good view over the city, don't go to Sydney Tower and pay too much entrance fee, but walk to Australian Square on Georgestreet, catch the elevator to the 41th floor and arrive in a very laid back restaurant where they have a rotating floor and a magnificent view over Sydney. Buy a drink (a cocktail makes it even better) and take a seat on a chair and while chatting with your friends you see the whole of Sydney coming by. You are not obliged to have dinner in the restaurant, a drink will do.

The restaurant opens at 5.00 pm. I forgot the name, but it's easy to find.