Catch the ferry
There are three ferries that travel between Perth and Rottnest Island. The Rottnest Express leaves from Fremantle and the city (the latter includes a scenic route along the Swan River with commentary), SeaLink also departs from Fremantle and the city, and Rottnest Fast Ferries leaves from Hillarys Boat Harbour, for those staying north of the river. Each company offers tour and package options, plus bike and snorkel hire, although bikes can also be hired on the island.