Crack a Jack earns its name from the dense schools of jacks that sweep through the water column here, often accompanied by fusiliers and clouds of glass fish that part around you as you descend. The reef runs from a snorkeller-friendly 5 metres down to 36 metres, putting serious depth on the table for those who want it. Visibility typically ranges from 15 to 30 metres, so you can watch the action from a distance before committing. Current stays mild, which helps. Look carefully into the gorgonian fans for pygmy seahorses, and keep an eye on the sandy margins for marbled stingray and sea snakes. Whitetip and gray reef sharks work the deeper sections regularly. Watch for jellyfish throughout the water column and stay aware of boat traffic on ascent.

The Point at Agincourt Reef 4 delivers the kind of drift diving that keeps intermediate divers coming back. Strong currents sweep along this outer reef site, bringing in the pelagics and keeping the visibility between 15 and 28 metres. The depth range of 5 to 30 metres gives you options, though most of the action happens where the current picks up along the deeper sections. You'll encounter grey reef sharks, white-tip reef sharks, and black-tip reef sharks cruising the blue, whilst big-eye trevally and barracuda patrol the reef edge. Schools of striped fusiliers and yellow-tail fusiliers stream past in the current. Look closer and you'll spot Goldmann's sweetlips tucked into the coral, red bass holding station, and parrotfish working over the reef. The current demands respect and proper buoyancy control. You'll need to be comfortable with drift diving techniques and confident managing your position in moving water. Boat traffic is active in this area, so stay aware during your safety stop. The winter months from May through October offer the most reliable conditions, with calmer seas and consistent visibility.

Barracuda Bommie is a boat-access site in Queensland where you're likely to encounter the school of barracuda that gives the site its name. Shallower areas sit around 6 metres, making them comfortable for newer divers, though the site extends into deeper water at 26 metres. Visibility ranges from 12 to 30 metres, so conditions are generally good for spotting marine life. Alongside the barracuda, look for turtles, coral trout, trevally, and sweetlips, with smaller species like cardinalfish and blue-lined snapper filling in the gaps. Be aware that currents can run moderate to strong, so stay close to your guide.

Harrys Bommie sits at a consistent 16 metres, making it a straightforward dive for beginners who are comfortable descending to moderate depths with a guide. Visibility ranges from 10 to 30 metres, so on a clear day you can take in the whole structure from a distance. The current is generally mild, which lets you hover and watch without fighting to hold position. Manta rays and grey reef sharks are among the more striking visitors here, while coral trout, groupers, fusiliers, and mackerel fill out the water column. Keep an eye out for jellyfish, particularly during certain seasons.

Phil's Bommie at Light Reef is a coral formation rising from the reef that suits beginners well, with no current to worry about and visibility typically ranging from 10 to 30 metres. Depths run from a shallow 5 metres down to 30 metres in the deeper sections, so newer divers can stay comfortable in the upper reaches while building confidence. You can expect to spot clownfish tucked into anemones, giant clams, parrotfish, and angelfish on the shallower sections. Sea turtles and maori wrasse are regular visitors, and manta rays, eagle rays, and reef sharks appear in the deeper water. Watch for jellyfish and always keep a respectful distance from marine life.

Turtle Bay lives up to its name, with loggerhead turtles a reliable presence across the site's depth range of 5 to 22 metres. Visibility runs from 10 to 30 metres in the clearer conditions, giving you plenty of time to watch grey reef sharks and white-tip reef sharks working the deeper water. Moderate current pulls through regularly, which draws in schools of yellow tail fusiliers, trevally, and mackerel, so position yourself accordingly and let the fish come to you. Giant clams and sea fans mark the reef structure, while parrotfish and red bass fill out the mid-water. Check for jellyfish before entering, particularly in the shallower sections.

Nursery Bommie sits in the deeper waters of Agincourt Reef 2, reaching 25 metres, with visibility ranging from 12 to 30 metres depending on conditions. Despite the depth, mild currents keep things manageable for newer divers on a guided boat dive. The site rewards patient observers: look closely for leaf scorpionfish and nudibranchs tucked into the reef structure, while lionfish hover nearby. Schools of fusiliers, blue-striped snapper, and surgeonfish move through the water column, and clownfish are reliably found in their anemones. Barracuda and trevally occasionally cruise the edges, and rock cod tend to sit still long enough for a good look.

Big Buoy offers a proper drift dive along a reef wall studded with pinnacles, where moderate currents carry you past some of Queensland's most reliable marine encounters. The wall drops from 5 to 40 metres, and you'll cover serious ground as the current sweeps you along the structure. Visibility ranges from 15 to 30 metres, giving you excellent sightlines to spot the site's standout residents. Manta rays cruise the blue water off the wall, whilst reef sharks patrol the deeper sections. You'll find giant clams embedded in the reef face, their mantles creating vivid splashes of colour against the coral. Maori wrasse appear surprisingly unperturbed by divers, often approaching close enough for proper observation. The pinnacles harbour cod in the shadows and schools of barracuda in mid-water. Sea turtles graze the reef top, and you'll spot clownfish amongst the anemones, parrotfish working the coral, and sweetlips sheltering in the overhangs. This is a boat-only site with active marine traffic, so surface awareness matters. The current dictates your dive plan here, so you'll need solid buoyancy control and the confidence to work with the flow rather than fight it. The variety of depth and structure means you can tailor your profile, but the real reward comes from letting the current show you the reef.