Three kilometres west of the town centre is 275-million-year-old Fossil Bluff. It was created by an ancient tidewater glacier and is rich in fossils, including the remains of prehistoric whales and the oldest marsupial fossil found in Australia. The species was named Wynyardia bassiana in honour of the town. At low tide, walk around the base of the bluff and fossick for fossils. Ask at the visitor centre for the geological guide, Looking for Fossils .