Marley Point in the Royal National Park is an advanced reef and cave dive site located 5500 metres offshore. The topography features complex cave systems and sponge gardens, with depths ranging from 5 to 35 metres and an average of 18 metres. Divers must manage moderate currents and surge, which can push against cave walls. Visibility varies significantly between 5 and 25 metres. Due to the surge and current, this site is strictly for experienced divers. Boat entry is required, and timing dives around slack water is recommended to mitigate current impact. Always monitor conditions closely, as offshore winds can bring colder deep water to the surface.

Wottamolla is a boat-accessible site located off the Royal National Park, featuring a combination of reef and wall topography. Divers typically explore depths between 18 and 27 metres, with an average depth of 22 metres. Conditions are variable, with visibility ranging from 5 to 20 metres and moderate currents present. Due to the depth and potential for strong currents and surf, this site is suited for intermediate divers. Species recorded around this area include Weedy Seadragons, Spotted Wobbegongs, Eastern Blue Groper, and various cuttlefish. Divers should be cautious of sharp coral and rocks on the reef and walls. Night diving is possible at this location.

Wattamolla Lagoon in Royal National Park offers a sheltered shore entry point suitable for both snorkelling and diving. The site features a reef environment with depths ranging from 18 to 27 metres, averaging 23 metres. While the lagoon itself remains calm, divers should be aware of potential surf and strong currents outside the sheltered area. Visibility fluctuates between 3 and 15 metres. Species recorded around this area include Eastern Blue Groper, wobbegong sharks, stingrays, and sea turtles. Facilities including parking and toilets are available. Jumping from the surrounding cliffs or waterfall is prohibited due to variable depths and submerged rocks.

Barrens Hut is a boat-accessible site located 300 metres off the coast of Cronulla, Australia. The topography features a combination of reef, wall, and drop-off terrain with depths ranging from 12 to 28 metres. Divers should be prepared for moderate currents that can accelerate along the wall, requiring careful navigation. Visibility typically ranges between 15 and 35 metres. Due to the depth and current conditions, this site is suited for advanced divers. Species recorded around this area include Weedy Seadragons, Spotted Wobbegongs, Pygmy Pipehorses, Red-fingered Anglerfish, Green Sea Turtles, Giant Cuttlefish, Pot-bellied Seahorses, Coffin Rays, Port Jackson sharks, and various nudibranchs.

Waterfall is a boat-accessed dive site near Cronulla, Australia, featuring a dramatic wall that drops from 12 to 28 metres. The topography includes a varied reef structure, wall, and drop-off, with cave features present. Divers typically experience mild currents, though conditions vary due to the site's exposure to the open ocean, where surge can be a factor. Visibility ranges from 5 to 30 metres. This site is suited for intermediate divers who are comfortable managing depth and potential surge. Divers must remain vigilant regarding boat traffic overhead and should deploy an SMB before ascending. Typical dive duration is 45 minutes.

The SS Undola is a shipwreck located 2500 metres offshore in the Royal National Park, resting at depths between 43 and 45 metres. This site is strictly for advanced divers due to the depth, potential for entanglement, and moderate to strong currents that can necessitate dive cancellations. Visibility ranges from 5 to 30 metres. Access is by boat only, and divers should plan for a typical dive duration of 40 minutes. It is recommended to time dives with slack water to manage current strength. Water temperatures fluctuate between 17C and 21C throughout the year.

Bass and Flinders Point in Cronulla is a shallow drift dive and snorkel site featuring a rocky reef and wall topography. Divers and snorkellers typically experience depths between 3 and 8 metres. The site is accessed from the shore, with a moderate current on an outgoing tide carrying visitors toward Oak Park. Visibility generally ranges from 5 to 10 metres. The area is subject to surge, particularly with north-easterly swells exceeding 1.4 metres. Divers should remain vigilant regarding boat traffic and potential entanglement from discarded fishing lines. Facilities at the site include parking, toilets, showers, and changing rooms.

The 4th-5th Reefs off Cronulla consist of temperate reef structures at depths of 15 to 17 metres. This site is suitable for intermediate divers and offers both shore and boat entry options. Visibility typically ranges between 5 and 10 metres. Divers should be aware of boat traffic in the area and are advised to deploy a surface marker buoy before ascending. Facilities at the site include parking and toilets. The water temperature fluctuates between 18C and 24C, with the warmest conditions occurring from summer through early autumn.