A ferry service poised to link Sydney’s new $836 million fish market to Circular Quay raises the prospect of a harbour route to rival the Manly ferry as a must-do experience for tourists.

Most Sydneysiders and visitors prefer getting to Manly by way of the Circular Quay to Manly ferry. (Manly Wharf sits about six blocks from the beach.) There are also "fast ferries," which get ...