Taronga Zoo

Taronga owns the most valuable real estate any zoo occupies: a harbour-facing hillside directly across from the Opera House, which means its giraffes browse against a backdrop of bridge and skyline — the single most photographed zoo enclosure on Earth, and the animals seem entirely unimpressed, which completes the joke. The name is Aboriginal for "beautiful view"; the zoo has been living up to it since 1916, when the elephants arrived by barge.

Getting there is half the ticket: the 12-minute ferry from Circular Quay is Sydney's best cheap cruise, and the Sky Safari cable car (included with entry) lifts you from the wharf over the enclosures to the top gate — the correct strategy, since the zoo cascades downhill and you walk it with gravity, exiting back at the ferry. Inside, the Australian collection is the point for visitors: koalas at eye level on their walkway, kangaroos and wallabies in a walk-through paddock, echidnas, wombats, a nocturnal house with the platypus — genuinely hard to see in the wild — and the Tasmanian devil breeding program. The seal and bird shows (free, timed) punch above zoo-show average; the QBE seal theatre's harbour backdrop again refuses to be fair.

It's a comfortable half day: ferry over mid-morning, three to four hours downhill, ferry back for a late lunch at the Quay. Buy the zoo-plus-return-ferry combo online — cheaper than assembling the parts, and it skips the ticket queue at the wharf. Summer visits want hats and early starts (the hillside bakes after noon); winter visits get the clearest skyline. And for the committed: the zoo's Wildlife Retreat and "Roar & Snore" glamping put you inside the grounds overnight, waking to lions grumbling at a harbour sunrise — the most Sydney sleepover available.