Australia’s third-largest sea island, after Tasmania and Melville Island, is a haven for wildlife and a popular escape for nature-loving mainlanders from Adelaide and Melbourne. Seabourn Sojourn’s call will occur during the annual birthing season of the New Zealand sea lion and Australian fur seal colonies on the nearby beach conservation areas. Marine tours seek the playful porpoises and dolphins offshore, while land-based excursions visit preserves for koalas and wallabies, as well as the popular local wineries.