Diving Snorkeling Australia's Great Barrier Reef - Lonely Planet Pisces Books Author:Len Zell The world's largest marine park and most extensive reef system, Australia's Great Barrier Reef is an incredible network of islands and coral-covered fringing reefs, mangroves and sand cays. Explore the submerged mountaintops of the Coral Sea reeds, witness humpback and minke whale migrations, see car-size cod and dive into history as you investi... more »gate the Yongala's watery grave. Excellent visibility shallow waters and a thriving dive industry mean world-class and accessible diving and snorkeling for any level of expertise. From Lady Elliot Island to the Torres Strait, this guide describes the best dives on the Great Barrier Reed and Coral Sea, with full-color photos throughout.