Little Grotto is a shallow reef and cave site located off Cooper Island. The topography features a small cave-like passageway, providing an overhead environment for divers to explore. With depths ranging from 5 to 11 metres and an average of 8 metres, the site is well-suited for beginners. Conditions are generally favourable, with mild currents and visibility typically between 18 and 30 metres. Access to this site is by boat only. Divers should remain aware of boat traffic in the area while surfacing. A typical dive at this location lasts approximately 50 minutes.

The Kodiak Queen is a historic wreck and artificial reef located off Cooper Island. This former Pearl Harbor survivor rests at depths between 5 and 18 metres, with an average depth of 10 metres. The site is accessible only by boat and is suitable for beginner divers. Conditions are generally mild, with visibility ranging from 6 to 25 metres and water temperatures between 27 and 30C. Divers should be aware of potential entanglement hazards when exploring the structure. Night diving is permitted at this location, which typically hosts 50-minute dives.

Seal Dog North, located off Cooper Island, features a reef top starting at 5 metres that transitions into a pinnacle dropping to 28 metres. With an average depth of 18 metres and consistent 30-metre visibility, the site offers clear views of the structure. Divers should be prepared for mild currents that can strengthen, requiring careful monitoring of depth and position. Boat entry is required for this site, which is suited for intermediate divers. Species recorded around this area include nurse sharks, queen and French angelfish, fairy basslets, and various wrasses. Always maintain awareness of surface surge and current conditions during your ascent.

Sharkplaneo at Cooper Island is an artificial reef site featuring three plane wrecks installed by the non-profit Beyond The Reef. This dive site offers a combination of wreck, reef, and wall topography suitable for beginners. Divers can explore the structures at depths ranging from 12 to 14 metres, with an average depth of 14 metres. Access is by boat only. Conditions are generally mild with visibility between 12 and 30 metres. Water temperatures remain warm throughout the year, ranging from 27C to 30C. Be aware that the plane wrecks present an overhead environment hazard. Species recorded around this area include wrasses, groupers, angelfish, and nurse sharks.

Coral Gardens at Cooper Island offers a combination of natural reef and artificial reef structures. Situated at depths between 6 and 15 metres, the site is well-suited for beginners due to its mild currents and visibility ranging from 15 to 30 metres. Water temperatures remain warm throughout the year, typically between 27 and 30 degrees Celsius. Access is by boat, with the site located 500 metres from shore. Divers can also conduct night dives here. Due to active boat traffic in the area, it is essential to carry a surface marker buoy and deploy it before ascending to ensure safety.

The Chimney at Cooper Island is a marine dive site defined by its complex topography of walls, canyons, and a notable archway. The site is named for the narrow passage formed where two cliff faces meet, creating an overhead environment. Divers typically explore the area by boat, navigating depths between 5 and 15 metres with an average of 10 metres. Conditions are generally mild, though surge and boat traffic are present. The site is suited for intermediate divers due to the overhead environment and the need to navigate through the canyon and arch structures. Visibility ranges from 5 to 30 metres, and water temperatures remain warm throughout the year.

Great Dog is a boat-accessible site located off Cooper Island, featuring a combination of natural and artificial reef structures. The site is suitable for beginner divers, with depths ranging from 5 to 15 metres and an average depth of 14 metres. Divers experience mild currents and visibility between 5 and 16 metres. Water temperatures remain warm throughout the year, ranging from 27 to 30 degrees Celsius. Navigation can be disorienting due to the mix of reef types, so staying close to a guide is recommended. Divers should exercise caution around sharp coral and be aware of boat traffic near the surface.

Bronco Billy at Cooper Island features a combination of shallow reef and canyon topography. Divers can explore this varied landscape at depths ranging from 5 to 16 metres, with an average depth of 8 metres. Visibility typically spans 10 to 30 metres, allowing for clear navigation of the canyon structures. The site is suitable for beginners, though divers should be aware of mild currents and potential surge. Due to the presence of sharp coral and rocks, maintaining neutral buoyancy is essential. Access is by boat only, and divers should arrive fully equipped as no facilities are available on-site.