- Port Douglas (QLD): Among the fabulous dive sites off Port Douglas, north of Cairns, are Split-Bommie, with its delicate fan corals and schools of fusiliers; Barracuda Pass, with its coral gardens and giant clams; and the swim-through coral spires of the Cathedrals. Snorkelers can glide over the coral and reef fish life of Agincourt Reef.
- Cairns (QLD): Moore, Norman, Hardy, Saxon, and Arlington reefs and Michaelmas and Upolu cays—all about 90 minutes off Cairns—offer great snorkeling and endless dive sites. Explore on a day trip from Cairns or join a live-aboard adventure.
- The Whitsunday Islands (QLD): These 74 breathtaking islands offer countless dive sites both among the islands and on the Outer Great Barrier Reef, 90 minutes away. Bait Reef on the Outer Reef is popular for its drop-offs. Snorkelers can explore not just the Outer Reef but also patch reefs among the islands and rarely visited fringing reefs around many islands.
- Heron Island (QLD): Easily the number-one snorkel and dive site in Australia—if you stayed in the water for a week, you couldn’t snorkel all the acres of coral stretching from shore. Take your pick of 22 dive sites: the Coral Cascades, with football trout and anemones; the Blue Pools, favored by octopus, turtles, and sharks; Heron Bommie, with its rays, eels, and Spanish dancers; and more. Absolute magic.
- Lady Elliot Island (QLD): Gorgeous coral lagoons, perfect for snorkeling, line this coral cay island off the town of Bundaberg. Boats take you farther out to snorkel above manta rays, plate coral, and big fish. Divers can swim through the blowhole, 16 m (52 ft.) down, and see gorgonian fans, soft and hard corals, sharks, barracudas, and reef fish.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.