I filmed these turtles in the shallow waters of Lizard Island, Great Barrier Reef, Australia. They were feeding on the seagrass which makes up the main part of their diet. It is thought that they consume 2.5% of their total body weight of sea grass each day!
More wildlife destinations
Whether you dream of seeing a polar bear or watching lions prowl the savannah, enjoy more of Robert's wildlife adventures and find out how you can follow in his footsteps.