From Australian Museum, we took a train to Circular Quay and planned to take a ferry ride to Birkenhead. When we reached the pier, we were told that there is no longer ferry service to Birkenhead except by some privately owned ferry company. We then went to a visitor centre to make an enquiry and was told to take bus service or taxi to Birkenhead. Since we have the Opal cards, we decided to take the bus service, which is about 30-40mins journey.
It's not easy to shop with two kids around because to them, shopping is boring. So we have to constantly look out for things that will interest them.