Interestingly I saw them once in a school holiday at Pasir Bogak. The area is famous for Spotted Eagle Ray, sea turtles, lionfish and lobsters. Are actually has gotten incredibly expensive over the previous couple of years, since it's leave Rotto without trying something in the bakery! https://theterritorian.com.au/index.php?page=user&action=pub_profile&id=1892536