© iStock/4FR Diving the Great Barrier Reef The Great Barrier Reef is probably the most popular dive destination on the planet, attracting over 2 million visitors each year. Located along the Queensland coast of northeastern Australia, this 2,300km (1,430 miles) long reef is massive! The most extensive coral reef system in the world, it can even be seen from space. The diversity of marine life here is simply astounding. Divers will encounter 1500 different types of fish along with hundreds of other coral species. Bring your camera because this breath-taking array of sea life is all set against a jaw-dropping backdrop of over 2800 individual reefs and 900 small islands. Diving the Great Barrier Reef never disappoints. Sitting in the warmth of the Coral Sea, water temperatures never drop below 24 C (75 F) and can reach upward of 30 C (85 F) in summer months. Diving is spectacular all year round; however, different seasons bring in different migrating marine life and various reef activities. Visibility is fantastic all year long, averaging 15-21 meters (50-70 feet) but can even reach up to 30m (100 ft). The city of Cairns is the most popular starting point for booking dive charters, however, basing your dive holiday in Port Douglas, Townsville, or Cap York can get you to less touristy areas of the reef. Featured places to go in Great Barrier Reef © MaresNorth QueenslandReferred to by many as ‘Tropical North Queensland,’ this diving region has it all.Learn more © MaresSouth QueenslandSouth Queensland diving offers everything from the world-renowned Great Barrier Reef to exciting shipwrecks full of life.Learn more Dive Sites in Great Barrier Reef Discover the Wonders of the Deep with SSI's Blog Join us on an exciting journey of discovery and learn more about exhilarating diving adventures, dedicated conservation initiatives, and innovative educational opportunities that will help you illuminate the extraordinary beauty of the underwater world. Let's explore the underwater world together and delve into the hidden wonders beneath the gentle waves. The descriptions provided here are intended as general information and personal experiences related to specific dive sites and locations and should not be construed as definitive advice or recommendations. Before diving, please confirm that diving is permitted at your chosen location, and comply with all relevant local laws, regulations, and posted signage. The responsibility for verifying the legality of the dive and assessing any associated risks rests entirely with you.