Royal Caribbean cruise ship EXPLORER OF THE SEAS at the Overseas Passenger Terminal, Sydney Cove, 22 Apr 2017.
Ferries represent five of the many different types used on Sydney Harbour.
Clockwise from top:
Sydney Ferry Corporation's Manly ferry FRESHWATER, Manly Fast Ferries' SEACAT 1, Captain Cook Cruises' MEGAN, Sydney Ferries Corporation First Fleet Class ferry GOLDEN GROVE, Lady Class ferry LADY HERRON and the First Fleet Class ferry ALEXANDER.