Manly Bommie is an offshore reef formation located 500 metres from the coast of Manly. This site features depths ranging from 8 to 16 metres, with an average depth of 13 metres. The topography includes rocky surfaces, overhangs, and swim-throughs. Divers regularly encounter spotted wobbegongs, eastern blue gropers, Port Jackson sharks, fiddler rays, eagle rays, and various wrasses. Rarer sightings include weedy seadragons and smooth rays. Due to its offshore location, boat traffic is a hazard, and divers must deploy a surface marker buoy upon ascent. Conditions such as visibility and currents are variable, requiring intermediate skill levels. Boat access is required to reach this site.

Cabbage Tree Point in Manly is a shore-accessible dive site featuring a combination of natural reef and artificial reef structures. Divers typically experience depths between 7 and 12 metres, with an average depth of 9 metres. The site is suitable for beginners, though conditions vary with visibility ranging from 4 to 10 metres and mild currents that can shift. Entry is via a shore break where divers should shuffle their feet to avoid stingrays. Facilities at the location include parking, toilets, showers, changing rooms, a cafe, and a dive shop. Night diving is permitted, and a typical dive lasts approximately 50 minutes.

Shelly Beach in Manly is a protected shore dive and snorkel site featuring a rocky reef that ranges from 2 to 14 metres in depth. The site is well-suited for beginners due to its mild currents and straightforward navigation. Divers and snorkellers can access the water via a concrete boat ramp, avoiding the need to cross sand. Visibility typically fluctuates between 3 and 20 metres. On-site facilities include parking, toilets, showers, and a cafe. The site is also suitable for night diving, with an average dive time of 50 minutes. Water temperatures range from 18C to 24C, though conditions can feel cool during rainy periods.

Fairy Bower Beach is a shore dive located in Manly, situated between Manly Beach and Shelly Beach within the Cabbage Tree Bay Aquatic Reserve. The site features a rocky reef system, kelp forests, and seagrass beds at depths of 2 to 10 metres, averaging 6 metres. It is generally sheltered from strong currents and swells, though surge can occur near the rocks. Entry is via stairs and a rock pool. The site is suitable for beginners, with visibility ranging from 3 to 20 metres. Facilities include toilets, showers, changing rooms, and a nearby cafe. Divers should be aware of boat traffic, sea urchins, and surge.

Manly Aquarium is a sheltered shore dive located near Manly Wharf in Sydney. The site features seagrass beds and artificial reef structures at depths ranging from 3 to 10 metres, with an average depth of 4 metres. It is suitable for beginners due to the mild currents and shallow, protected conditions. Divers should remain vigilant regarding boat traffic in the vicinity. Visibility typically fluctuates between 2 and 10 metres. Facilities at the site include parking, toilets, showers, and a nearby dive shop. Night diving is permitted, and the site is well-suited for buoyancy practice.

Bluefish Bay in Manly features a combination of wall and reef topography, reaching depths between 5 and 22 metres. Divers can explore gorgonians and sponges along the wall, while the reef structure provides habitat for Port Jackson sharks, wobbegongs, weedy seadragons, and pygmy pipehorse. Eastern blue groper, red morwong, and yellowtail scad are also present. The site requires boat access and is suited for intermediate divers due to potential surge and swell, particularly near the wall. Visibility varies from 5 to 25 metres, with mild currents typical of the area. Divers should exercise caution during entry and exit from the boat.

Dee Why Wide is an advanced reef and drop-off site located 2400 metres offshore from Manly. Depths range from 20 to 37 metres, averaging 24 metres. The site is exposed to ocean conditions, including moderate currents and surge, requiring boat access and careful planning. Visibility varies significantly from 5 to 30 metres. Due to the depth and potential for boat traffic, divers must use a surface marker buoy for open-water ascents. Species recorded around this area include giant cuttlefish, spotted wobbegong, green sea turtles, grey nurse sharks, weedy seadragons, and Port Jackson sharks. Divers should be prepared for deep, exposed conditions and coordinate closely with their boat skipper.

Fairlight Beach in Manly offers a protected shore dive suitable for beginners. The site features a diverse topography transitioning through reef, kelp forest, and sandy muck patches at depths between 3 and 14 metres. Divers frequently encounter Eastern Blue Groper, Port Jackson sharks, Pot-bellied Seahorses, and Common Sydney Octopus. Less common sightings include Green Sea Turtles, Spotted Wobbegong, and Giant Cuttlefish. Conditions are generally mild, though visibility fluctuates between 3 and 10 metres. Divers should remain cautious of boat traffic near the channel and use a surface marker buoy. Facilities including parking, showers, and toilets are available for visitors.