A Sea Turtle scours a coral reef for food underwater near Lady Elliot Island, the southern-most coral cay of the Great Barrier Reef, Australia. The Great Barrier Reef is one of the most important sea turtle habitats in the world, with Lady Elliot Island being a key part of that habitat.The island is located within the Great Barrier Reef Marine Park and is teeming with live corals and sea-life, including rays, turtles, fish and birds.