ADVICE - SYDNEY JANUARY 2012. What are some DIFFERENT things to do? Not the usual things?!?

i've been sydney before - did main city tourist things harbour bridge, opera house, shopping in cbd...

other things do/see/places go within city people miss out on doing?
friends , don't want travel tooooo far out!

thanks!

i've been sydney before - did main city tourist things harbour bridge, opera house, shopping in cbd... other things do/see/places go within city people miss out on doing? friends , don't want travel tooooo far out! thanks!

Travel Australia Sydney Next