Middleton is a town in South Australia on the eastern end of the south coast of the Fleurieu Peninsula. It lies between the towns of Port Elliot and Goolwa. Middleton is a holiday and tourist destination with a popular surf beach. Some southern right whales calve and mate in the waters off Middleton's beaches and can be viewed from Middleton Point or Bashams Beach during the whale watching season (June or July to October). Australian sea lions can be seen resting on beaches. The 2016 Australian census, carried out in August 2016, reported the population of Middleton as 1156.