Sisters Beach is a locality and small town located in the Waratah-Wynyard municipality of Tasmania within fifteen minutes of Wynyard, in Tasma…Sisters Beach is a locality and small town located in the Waratah-Wynyard municipality of Tasmania within fifteen minutes of Wynyard, in Tasmania's North West. It is located within the Rocky Cape National Park and is situated on the old horse trail known as the Postman's Track that once formed the only connection between Emu Bay and the Van Diemen's Land outpost of Stanley.