Talc Head is a shallow reef site located in Darwin Harbour. Divers and snorkellers can access the area via shore or boat, with depths ranging from 5 to 15 metres and an average depth of 10 metres. Conditions are variable, with mild currents and visibility typically between 5 and 10 metres. Due to the presence of sharp coral, good buoyancy control is essential to avoid injury. The site is suited for intermediate divers, and visitors should remain aware of local water safety precautions, including the presence of saltwater crocodiles in the region. Always check conditions immediately prior to your dive or snorkel as currents and visibility can change rapidly.

Picnic Point Beach on the Cox Peninsula offers a shallow shore entry suitable for beginners. The site features variable currents and visibility that is best at high tide. Facilities include on-site parking and toilets. Divers and snorkellers must be aware of significant hazards in these waters. Government advice warns against swimming, diving, or snorkelling here due to the presence of saltwater crocodiles and venomous box jellyfish. Stinger suits are strongly recommended year-round. Additional hazards include boat traffic, sharp coral, and surf. Due to the extreme danger posed by local wildlife, this site is not recommended for water-based activities.

Wagait Beach on the Cox Peninsula is a shore dive suited only for expert divers. The site is shallow, requiring careful management of surge and moderate to strong currents. Divers must plan entries around tidal cycles, as conditions are unforgiving. The Northern Territory Government advises against swimming at this location due to the presence of saltwater crocodiles. Additionally, box jellyfish are a hazard from October to May. Species recorded around this area include giant guitarfish, bluespotted fantail rays, pufferfish, rock cod, live sharksuckers, longfin baitfish, mullet, and snails. Parking is available at the beach. Always check tidal tables before arrival.

The Song Saigon is an artificial reef and wreck dive located in Darwin Harbour. The vessel sits at depths between 19 and 25 metres, with an average depth of 24 metres. This site is suitable for intermediate divers and requires boat access. Conditions are characterised by mild currents and low visibility, typically around 5 metres. Divers should be prepared for jellyfish and maintain good buoyancy control, especially when navigating the wreck structure. A dive torch is recommended to assist with navigation in the low-light environment. Species recorded around this area include giant guitarfish, bluespotted fantail rays, rock cod, pufferfish, and various baitfish.

The USS Peary is a US destroyer resting upright on the seabed at depths between 26 and 33 metres. Sunk during a 1942 air raid, the wreck is heavily salvaged with sharp edges and twisted metal, posing significant entanglement risks. This advanced site requires boat access and is subject to powerful tidal currents and low visibility, often ranging from 2 to 7 metres. Divers must time their entry around slack tide. Hazards include boat traffic, jellyfish, and the presence of saltwater crocodiles. Species recorded around this area include giant guitarfish, bluespotted fantail rays, rock cod, and various pufferfish. Night diving is possible, though conditions remain challenging.

Dudley Bommies is a shallow reef site located off the Cox Peninsula. The site is defined by strong tidal currents resulting from the large tidal range in Darwin Harbour, which can reach up to 8 metres. Due to these conditions, diving is generally restricted to neap tides, and divers must plan their entry around slack water. Access is possible by boat or from the shore. Water temperatures are warm, ranging from 26C to 31C throughout the year. Hazards at this location include strong tidal currents, rip currents, dangerous tropical jellyfish, and the presence of saltwater crocodiles. Divers should maintain high situational awareness and check local conditions before entering the water.

The outer breakwall at Cullen Bay Marina serves as an artificial reef, consisting of rock and rubble structures that attract marine life. This shore-entry site is strictly for advanced divers due to the strong tidal currents characteristic of Darwin Harbour, which can reach significant speeds. Visibility is variable, ranging from 1 to 15 metres. Divers must maintain tight proximity to the wall, manage buoyancy carefully, and deploy a surface marker buoy before ascending to avoid boat traffic from the marina. Facilities including parking, toilets, showers, and a cafe are available nearby. Given the strong currents and potential hazards, this location is not considered a public snorkelling site.