The Cod Hole, along with the five other spectacular dive sites listed, represent the underwater treasures divers can experience in the Great Barrier Reef region. For those seeking the thrill of the depths, these sites offer an assortment of experiences that promise to awe and inspire. So, dive in and immerse yourself in the remarkable underwater spectacle of the Great Barrier Reef. The best way for us to give you an insight is via the videos below with thanks to the video makers for their great work. ED: Kevin Parker
The Cod Hole, situated in the northern reaches of the Great Barrier Reef, has built a reputation for being one of the most distinctive dive sites in the world. Nestled in the vibrant underwater realm of the Ribbon Reefs, it is particularly acclaimed for the remarkable encounters it offers with its namesake resident species: the Potato Cod.

With their hefty bodies that can reach up to 2 meters in length and an average weight of 30 kilograms, Potato Cods have the ability to command attention in any aquatic setting. Their friendly and curious demeanor, however, is what makes them truly unique. Unlike the usually elusive marine life, Potato Cods are known to engage divers, swimming up close in a rare display of undersea sociability that has put the Cod Hole on the global diving map.
While the Potato Cods are undoubtedly the main attraction, the Cod Hole also provides divers with an opportunity to admire the Maori Wrasse, another sizeable species characterized by vibrant color patterns and a prominent forehead hump. These gentle giants add a layer of intrigue and beauty to the site’s underwater tableau.
But the wonders of the Cod Hole are not limited to its marine life alone. The underwater landscape here presents an awe-inspiring sight. The relatively flat seafloor, sitting at depths of 10 to 40 meters, serves as the perfect stage for the site’s marine stars. With visibility often exceeding 20 meters, divers are treated to an unobstructed view of the site’s marine splendor. Whether you are a novice or a seasoned pro, the Cod Hole offers an unrivaled diving experience that caters to all skill levels.
The Great Barrier Reef, a UNESCO World Heritage Site, doesn’t just stop at the Cod Hole, though. Here are five other remarkable dive spots in the region:
SS Yongala Wreck: Considered one of the best wreck dives globally, the SS Yongala sank in 1911 during a cyclone, taking all its passengers with it. Over the century, it has transformed into an impressive artificial reef teeming with an extraordinary variety of marine life, from coral trout and giant grouper to sea snakes and bull sharks.
Osprey Reef: Sitting in the Coral Sea, Osprey Reef is celebrated for its pristine visibility, which sometimes extends beyond 40 meters. This remote site is a sanctuary for pelagic species, including various shark species, mantas, and barracudas, providing heart-pounding encounters for thrill-seeking divers.
Ribbon Reefs: The Ribbon Reefs is a string of ten individual reefs renowned for their biodiversity. Besides housing the Cod Hole, the Ribbon Reefs offer a gamut of diving experiences ranging from colorful coral gardens, caverns, and swim-throughs, to steep drop-offs that plunge into the dark abyss.
Heron Island: As a natural coral cay, Heron Island presents an underwater world bathed in crystal-clear visibility. Turtles, rays, and a host of reef fish call this place home. With 20 different dive spots, it offers ample opportunity for exploration and discovery.
Lady Elliot Island: The southernmost coral cay of the Great Barrier Reef, Lady Elliot Island, is a manta ray hotspot. Home to over 1,200 species of marine life, including a variety of sharks, it offers divers a chance to dive the Blow Hole, known for its exciting topography and vibrant marine life.