Lissenung Island Reef in Kavieng, Papua New Guinea, is a shallow reef system ranging from 6 to 10 metres in depth. The site offers visibility between 20 and 40 metres and a consistent water temperature of 30C. Divers can access the reef via shore or boat, though caution is required due to potential surge, swell, and strong currents. Marine life recorded here includes wrasses, elongate clams, and various butterflyfish species such as the saddled, Pacific doublesaddle, vagabond, and bluelashed. Other sightings include ocellaris anemonefish, maroon clownfish, moorish idols, groupers, and crab-eye gobies. The site features full facilities, including equipment rental and guided tours, and supports night diving.

Matrix is a reef, wall, and drift dive site located off Kavieng, Papua New Guinea. Divers explore a depth range of 15 to 35 metres, with an average depth of 20 metres. The site features moderate currents, though drift sections can move quickly, requiring strong buoyancy control and situational awareness. Visibility typically ranges from 10 to 30 metres. Access is by boat only, and divers should account for a shore break at the entry point. Sharks are a known presence at this site. Night diving is available, offering a different perspective of the reef structure. Species recorded around this area include wrasses, elongate clams, flamingo tongues, snails, and sea cucumbers.

Lemus Island, located in the Kavieng channel system, offers consistent drift diving along a reef structure ranging from 12 to 25 metres in depth. Divers typically experience mild currents and visibility between 10 and 30 metres, with water temperatures remaining steady at 30°C. The site is suitable for intermediate divers, though sharp coral presents a hazard requiring careful buoyancy control. Boat entry is required for all dives, which average 50 minutes. Night diving is available, offering a different perspective of the reef. Divers should be aware of potential surge and strong currents, and a reef hook is recommended for maintaining position without contacting the coral.