Great Barrier Reef Marine Park Australia

TheGreat Barrier Reefis the worlds largestcoral reefsystemand by far the biggest structure made by living organismswith more than 2,900 individual reefs and 900 islands stretching 2,600pluskilometres. TheMarine Park, meanwhile, protects thousands of species of whales, dolphins, turtles, fish, coral and more. All of this draws waterproof cameratoting divers from around the world.