Rottnest Island lies twenty kilometres west of Fremantle, a low limestone island ringed by white-sand beaches and famous as the home of the quokka. Ferries from B-Shed and Victoria Quay run six or seven times a day in summer and take about thirty minutes; the day trip is one of the most popular outings in Western Australia.
Cars are not allowed on the island; the standard plan is to hire a bicycle on arrival and ride the 22 km loop, stopping at the bays of Salmon Bay, Little Salmon Bay, the Basin, and Pinky's. The water is exceptionally clear and several of the beaches have good snorkelling. The Wadjemup Lighthouse at the high point of the island gives a wide view; the small settlement at Thomson Bay has cafés and a museum. The classic visit is a single full day; an overnight stay needs booking months ahead.