Journey to Australia's Great Barrier Reef with Riley and his family as they see what's up down under! Large areas of the coral reef are dying, and they need to find out why. Joined by world-renowned marine artist and conservationist Wyland, the explorers face giant starfish, great white sharks, and even poachers in their search for answers. To ensure scientifically accurate and authentic content, thepublishers of Adventures of Riley have collaborated with leading field scientists from the Smithsonian Institution, Wildlife Conservation Society, World Wildlife Fund, and The Wyland Foundation.