Exmouth, Ningaloo Reef World Heritage Mega Marine Life "Internationally important and rare mega marine life includes one of the largest and best protected whale shark aggregations in the world, as well as whales, dolphins, manta rays, dugongs, sharks, large fish such as tuna and billfish, and turtles." Turtle Nesting "The area is one of the most important turtle rookeries in the Indian Ocean. Three turtle species breed here: the endangered loggerhead, the vulnerable green and the vulnerable hawksbill. Together they dig over 10,000 nests each year."