Îlot Canard is a reef site in the Nouméa Lagoon featuring a marked underwater trail with educational signs. The site is suitable for beginners, with depths ranging from 3 to 8 metres and an average depth of 5 metres. Access is via boat, and the area experiences mild currents. Facilities available on the islet include toilets, showers, and a cafe. While the near-shore coral is degraded, the outer trail markers provide a structured environment for snorkelling. Divers and snorkellers should be aware of potential hazards including low visibility, sharp coral, and the presence of sharks.

Baie des Citrons Southern Reef is a popular shore-access snorkelling site located near the aquarium in Nouméa. The site features a reef fringe and seagrass habitat with depths ranging from 1 to 6 metres, averaging 3 metres. Conditions are generally suitable for beginners, with mild currents and visibility typically between 10 and 15 metres. Water temperatures fluctuate between 23C and 27C throughout the year. Facilities available at the beach include parking, showers, toilets, and a cafe. Snorkellers should be aware of the presence of jellyfish and sharks in the area. A typical snorkelling session lasts approximately 45 minutes.

Baie Des Citrons is a highly accessible shore snorkeling site located in Nouméa. The area features a combination of reef and seagrass habitats, with depths ranging from 1 to 6 metres and an average depth of 4 metres. Conditions are generally calm with mild currents, making it suitable for beginners. Snorkellers can explore the coral reef bordering both ends of the beach. Facilities at the site include parking, showers, a cafe, first aid services, and equipment rental. The water temperature fluctuates between 23C and 27C throughout the year. Potential hazards at this location include jellyfish and sharks.

Anse du Tabac is a sheltered reef cove located at Îlot Canard in the Nouméa Lagoon. The site features a rocky shoreline with intricate formations, providing a protected environment for snorkellers. Entry is made directly from the shore. Conditions are generally suitable for beginners, though visitors should exercise caution regarding sharp coral present in the area. Water temperatures at this site range from 23C to 27C throughout the year. As a reef environment, the site is well-suited for those looking for a calm, accessible snorkelling experience within the lagoon.

Le Ponton, located on Tamanou Reef near Îlot Maître, features a floating platform that provides direct access to the surrounding reef environment. This site is suitable for beginners and offers snorkeling opportunities in depths starting from two metres. The area consists of a mix of natural reef and artificial structures. Access is by boat only, as the site is situated 4000 metres from the shore. Visibility can reach up to 40 metres, and water temperatures range between 23C and 27C throughout the year. Hazards include boat traffic and sharp coral. Facilities available at the platform include a cafe, equipment rental, boat charters, guided tours, and toilets.

Passe De Boulari is a drift dive site located 20 kilometres from the shore near Îlot Canard. The site features a reef environment with depths ranging from 10 to 30 metres, averaging 15 metres. Due to strong currents and potential surf, this location is suitable for intermediate divers. Boat access is required to reach the site, where visibility typically fluctuates between 10 and 30 metres. Water temperatures vary throughout the year, ranging from 23C to 27C. Night diving is permitted at this location. Divers should be aware of the presence of sharks and strong currents when planning their visit.

Ilot Larégnère is a marine site featuring extensive seagrass beds and a vibrant reef system. Located 13 kilometres from the shore, the site requires boat access and is suitable for beginners. Depths range from the surface to 7 metres, with an average depth of 3 metres. Water temperatures fluctuate between 23C and 27C throughout the year. The area is subject to mild currents. Facilities at the site include toilets. Divers and snorkellers should be aware of potential hazards, including sharp coral and the presence of sharks in the area.

Epave du Snark is a small wreck located off Îlot Amédée, sitting upright in 10 to 12 metres of water. This site serves as an accessible introduction to wreck diving, suitable for beginners. Divers can expect visibility between 10 and 30 metres, though caution is advised regarding entanglement hazards and potential drops in visibility. Marine life observed at the site includes wrasses, common coral trout, Napoleon wrasse, bluestreak cleaner wrasse, elongate clam, Pacific sailfin tang, pennant bannerfish, false puffer, freckled hawkfish, rock cod, Pacific trumpetfish, foxface rabbitfish, sling-jaw wrasse, and threadfin butterflyfish. Boat access is required, and guided tours are available from Nouméa dive centres.