Ferry

One of the world's most scenic public transport systems
Word to the wise: Sydney Harbour does receive some considerable swells that aren't well-suited to ferry passengers with fragile stomachs.

Noteworthy for: Each year, a handful of humpback whales stray into Sydney Harbour, which are usually best observed from the deck of the Manly ferry.
It's of little surprise that a bustling port like Sydney has a comprehensive ferry service, but it isn't just for tourists, with boats ferrying thousands of commuters to and from work each day from as far as Parramatta in the city's outer west. For leisure, recommended trips from Circular Quay include Balmain, Milson's Point, Neutral Bay, Mosman Bay, Taronga Zoo, Manly and Watson's Bay (restaurants and bars can be found at each port) but try to avoid rush hour, when ferries will be packed with commuters.

Sydney Ferries offer several ticket bundles, including the Zoo Pass (including return ferry ticket, bus transfer to the to Zoo entrance, access to the Sky Safari and entry to Taronga Zoo) and the MyMulti ticket, which provides unlimited travel for the period covered by the ticket on trains, buses, light rail and ferries.