Sandy Bay Reef is a shallow marine reef located 2000 metres offshore from Port Essington. The site features depths ranging from 1 to 10 metres, with an average depth of 5 metres. Access is by boat only. Visibility varies between 5 and 20 metres, and currents are generally mild, though they fluctuate with the tides. The site is suitable for intermediate divers. Hazards include the presence of crocodiles and, during the wet season from November to April, box jellyfish. Due to the remote location of the Cobourg Peninsula, travel to this site requires significant planning and permits.

Record Point Reef in Port Essington offers a shallow reef dive ranging from 2 to 12 metres. This site is suitable for beginners, featuring mild currents that are generally manageable. Access is exclusively by boat, and divers should note that visibility is variable, typically ranging between 3 and 10 metres. Water temperatures remain warm throughout the year, between 26C and 31C. Due to the presence of saltwater crocodiles, box jellyfish, and sharks, extreme caution is required when entering the water. Facilities at the site include showers. Always consult a local operator regarding current conditions and visibility before planning a dive.

Kennedy Bay Reefs in Port Essington is a remote reef site requiring boat access. The area is characterised by moderate to strong currents that fluctuate with the tides, necessitating careful planning and situational awareness. Divers should be prepared for variable visibility and potential hazards including jellyfish, high winds, and the presence of crocodiles in the region. The site is suited for advanced divers due to the challenging current conditions. The reef structure supports a variety of tropical marine life and invertebrates typical of the Northern Territory. Divers should coordinate with local boat traffic and aim for the slack tide window to manage the water movement effectively.