Îlot Hienga is a protected marine area near Bourail, New Caledonia, featuring a 250-metre-long marked underwater trail. Snorkellers follow five numbered buoys through diverse ecosystems, including seagrass meadows and coral gardens. The site is suitable for beginners, with depths ranging from 2 to 5 metres and an average depth of 3 metres. Access is by boat, and the site offers mild currents with visibility between 10 and 30 metres. Water temperatures fluctuate between 24C and 28C throughout the year. Equipment rental is available for those visiting this UNESCO World Heritage site.

Club Med Reef is a submerged seamount located northeast of Hiengabat Island near Bourail. This site features shallow coral heads, making it a suitable location for beginner snorkelers. Access to the reef is by boat, and the site typically experiences mild currents. Water temperatures at the reef range from 24C to 28C throughout the year. Equipment rental is available for those visiting the area. Snorkelers can expect a typical session duration of 60 minutes at this location.

La Cathédrale is a marine site located in Bourail, New Caledonia, defined by a deep reef fault that transitions into a tunnel. This passage opens onto a vertical wall, where light filtering through the ceiling creates a cathedral-like effect. The site reaches depths of 30 metres, with an average depth of 23 metres. Access is by boat only, and divers should be prepared for moderate currents. Due to the depth and potential for strong currents, this site is suitable for advanced divers. Visibility typically ranges between 15 and 30 metres, and water temperatures fluctuate between 24C and 28C throughout the year.

Îlot Hiengabat is a quiet islet located near Bourail, New Caledonia, featuring shallow fringing reefs. Accessible by boat from the Hienghène marina, the site is suitable for beginners and offers a relaxed environment for both diving and snorkelling. Conditions are generally mild, with water temperatures ranging from 24C to 28C throughout the year. Dives at this location typically last around 90 minutes. The site provides a straightforward reef experience for those looking to explore the local marine environment in a calm setting.

Donga Hienga is a reef and cave site located outside the lagoon near Bourail. The topography features underwater caves and arches adorned with massive gorgonian fans. Divers can expect depths ranging from 8 to 30 metres, with an average depth of 18 metres. The site requires boat access and is suitable for intermediate divers due to moderate currents and the presence of overhead environments. Sharp coral is present, requiring careful buoyancy control. Visibility typically varies between 10 and 30 metres, and water temperatures range from 24C to 28C throughout the year. Typical dive times are approximately 50 minutes.

Douoc is a marine site featuring a combination of reef, canyon, and drop-off topography. Located 8,000 metres from shore, this site requires boat access and is suited for intermediate divers. Depths typically range between 18 and 20 metres. Visibility is variable, ranging from 10 to 30 metres, with mild currents present. Water temperatures fluctuate between 24C and 28C throughout the year. Divers should exercise caution regarding sharp coral and rock edges, particularly when navigating the canyon sections. Maintaining buoyancy control is essential to avoid contact with the substrate. The site offers structural variety for those comfortable with depth and potential surge conditions.

Pointe de Kaun is a reef site near Bourail featuring a combination of open reef, caves, and caverns. The topography allows for exploration between 18 and 28 metres, making it suitable for beginner divers with an Open Water certification. The site is accessed by boat, and the absence of current provides a comfortable environment for navigating the overhead cavern sections. Visibility typically ranges from 10 to 30 metres, with water temperatures between 24 and 28 degrees Celsius. Divers should exercise caution within the cave environment, maintaining awareness of their positioning relative to the walls and monitoring air consumption throughout the dive.

Donga Hienga, located off Bourail, features a diverse underwater topography including reef, wall, drop-off, canyon, and cave structures. Divers can explore these formations at depths ranging from 10 to 18 metres, with an average depth of 15 metres. Visibility varies between 10 and 30 metres. Access is exclusively by boat, and the site is best suited for intermediate divers due to the presence of overhead environments like caves and swim-throughs. While currents are generally mild, they can build unpredictably near drop-off edges. Hazards include sharks, sharp coral, and potential strong currents. Formal overhead training is required for cave and cavern penetration.