The fish was found at Coorong National Park, 80km south of the city of Adelaide. It’s believed to have later washed back into the ocean.
Ocean sunfish, or Mola mola, are the world’s heaviest bony fish species and can be found in temperate marine waters globally, according to the Fishes of Australia. Their features include a large, blunt head, a disproportionately small mouth, and long dorsal and anal fins.
Expert say that the found fish appeared to be a smaller example of its species, which can grow over 4m tall and weigh more than 2.5 tons.