Use the Sydney Harbour - Manly ferry (a commuter route) as a means of seeing the best of Sydney harbour and north shore. It's much cheaper than the tourist trips and lasts longer!
Grab a Daytripper pass, it's an all-in-one day ticket for Sydney's trains, buses and ferries. That way you can jump on any of the ferries and see Sydney Harbour on the cheap.
My favourite trip is from Circular Quay up to Watson's Bay - to the pub for lunch with views looking back to the CBD skyline. Grab an ice cream for the trip home.
My favourite trip is from Circular Quay up to Watson's Bay - to the pub for lunch with views looking back to the CBD skyline. Grab an ice cream for the trip home.