The Great Barrier Reef is the largest coral reef on our planet.It's one of the seven recognized wonders of the natural world.The reef itself is the place that most people explore,but there's much, much more.The coral reef is actually a very small part of this underwater world.As little as seven percent.The remaining 93% encompasses a variety of other habitats,
each one remarkable in its own way.And there are environments on the land that are also important to the reef.