GREAT BARRIER REEF

The Great Barrier Reef is the largest reef system of the world, with more than 2,100 kilometres surface it's located in the northeastern Australia, a place where you can find more than 400 types of coral, as well as molluscs, dolphins, tropical fishes, birds, reptiles and more different kind of animals, that can only survive under special conditions that are specifically from the Great Barrier Reef, this means that it's also home for many endangered species, because they can only live under these conditions.