 The sandstone cliffs known as the Painted Cliffs are just south of Darlington.About 30 minutes' walk north of Darlington are the Fossil Cliffs, located in Fossil Bay and packed with fossils.The island has been identified by BirdLife International as an Important Bird Area (IBA) because it supports significant numbers of endangered swift parrots and forty-spotted pardalotes, over 1% of the world population of Pacific gulls, as well as populations of most of Tasmania's endemic bird species.