Tabbagai Gap in Kurnell features a combination of natural reef and artificial structures at depths between 18 and 24 metres. Divers encounter sponge gardens that provide habitat for various marine life, including wobbegong and Port Jackson sharks. Other species recorded here include weedy seadragons, eastern blue groper, blue devilfish, and Australian giant cuttlefish. Nudibranchs such as the splendid goniobranch and Bennett's hypselodoris are also present. This site is suited to advanced divers due to variable currents and visibility ranging from 10 to 30 metres. A boat is required for access, and divers should assess conditions carefully before entry, as surf can be a hazard.

Yena Extension is a reef and wall site located 1000 metres offshore from Kurnell. Designed for intermediate divers, the site features a wall structure that drops from 15 to 23 metres, with an average depth of 18 metres. Visibility is variable, ranging from 5 to 20 metres, and the site is typically free of strong currents. Access is strictly by boat, and divers must remain vigilant regarding overhead boat traffic. Hazards include potential entanglement from fishing lines and the presence of sharks, particularly when visibility is low. Divers are advised to perform thorough surface checks and deploy a delayed surface marker buoy upon ascent.

The Hilda is a wreck dive located 200 metres off Boat Harbour, Australia. Resting at depths between 21 and 27 metres, the site features an intact hull and superstructure. This dive is suited for advanced divers due to moderate to strong currents that require a quick descent. Visibility typically ranges from 10 to 30 metres. Divers should be prepared for strong currents upon entry and exercise caution around sharp edges on the wreck structure. Boat access is required for this site, and local current predictions should be checked before planning a dive. Typical dive duration is approximately 30 minutes.

Cape Solander in Kurnell offers an exposed shore dive featuring a dramatic boulder field, rock walls, and caves. Divers can explore depths ranging from 4 to 27 metres, with an average depth of 18 metres. The site is suited for advanced divers only due to challenging shore entries from the rock platform, which require careful timing with the swell. Currents are moderate and can be managed as a drift dive on an incoming tide. Visibility varies significantly from 2 to 30 metres. Facilities at the site include parking, toilets, and showers. Due to the exposure, surge and rapid changes in conditions are common.

The Leap in Kurnell is a wall and reef dive best suited for advanced divers. The site features a drift profile running from the surface to 24 metres, with an average depth of 18 metres. Divers typically enter from the shore and follow an incoming tide towards the exit point at The Steps. Conditions vary significantly, with visibility ranging from 3 to 30 metres and currents that can be strong. Hazards include surf, surge, boat traffic, and slippery entry points. A 5-7mm wetsuit is recommended year-round to manage water temperatures between 18C and 23C.

The Steps is a shore-entry reef dive located at Boat Harbour, New South Wales. The site features a reef environment ranging from 4 to 22 metres in depth, with an average of 11 metres. Divers can encounter species including the Weedy Seadragon, Smooth Ray, Common Sydney Octopus, and various sea stars, crabs, and sea hares. Snails and sea squirts are also present. This site is exposed to the open ocean, with moderate currents between 1 and 2 knots and potential for surge and surf. Due to these conditions, it is classified as an intermediate dive. Parking is available at the site.

Voo Doo is a boat-accessed site located 1100 metres off Boat Harbour, New South Wales. This advanced dive features a complex topography of reefs, walls, caves, and canyons reaching depths of 20 to 24 metres. Divers should be prepared for moderate currents and an overhead environment within the cave sections. Visibility typically ranges between 10 and 20 metres. Due to the depth and potential for strong currents, this site requires solid buoyancy control and careful air management. Species recorded around this area include Weedy Seadragons, Spotted Wobbegongs, Pygmy Pipehorses, and various rays. Always carry a light when exploring the cave and swim-through structures.

Inscription Point in Kurnell is a versatile shore dive featuring a reef system, kelp forests, and wall topography. Depths range from 4 to 25 metres, with an average of 8 metres. Divers frequently encounter Weedy Seadragons, Pygmy Pipehorses, and Pot-bellied Seahorses. Port Jackson sharks are common, particularly between July and September. The site is suitable for beginners, though access requires navigating a significant number of stairs and an uneven rock platform. While the site is protected from southerly swells, divers must remain vigilant regarding boat traffic and potential surge. Visibility varies between 3 and 20 metres, and mild currents allow for drift diving on incoming tides.