Cruise ships dock at two locations in Sydney, depending on size. Circular Quay is for tall ships, that can’t fit under the Harbour Bridge. The terminal is in the best possible location, right in the city and there are lots of shops, cafes and restaurants, from which you can people watch and enjoy beautiful views of the Opera House. The Rocks – Sydney’s original Old city with lovely preserved houses, as old as 200 years is minutes from the terminal. It’s very well connected to central Sydney, bus number 431 stops just outside the Overseas Passengers Terminal. There is a train station and a ferry station minutes from the terminal, taxis and onsite parking are also available. The International Airport is only 20 minutes away by car, depending on traffic.
White Bay is the other cruise spot for smaller ships, operating since 2013. There is no public transport there, you would need a taxi or an organised transfer, and the Airport is 30 min drive away.