Size and Location: The lagoon surrounds the main island of Grande Terre and is bordered by the Loyalty Islands. Its vast area is protected by one of the longest continuous coral reefs on Earth.

    Biodiversity: The New Caledonia lagoon is a UNESCO World Heritage site, recognized for its exceptional marine biodiversity. It is home to an array of marine life, including over 1,000 species of fish, numerous species of corals, and endangered species like the dugong and various sea turtles.

    Reef System: The barrier reef is around 1,600 kilometers long and includes a variety of reef types such as fringing reefs, barrier reefs, and atolls. This diversity in reef structures contributes to the lagoon's rich ecological tapestry.

    Activities: The lagoon offers numerous recreational activities, including snorkeling, diving, fishing, and sailing. The clear waters provide excellent visibility for underwater exploration, showcasing vibrant coral gardens and diverse marine life.

    Conservation Efforts: Due to its ecological importance, various conservation measures are in place to protect the lagoon's health. These include marine protected areas, sustainable tourism practices, and initiatives to mitigate the impacts of climate change and pollution.

    Cultural Significance: The lagoon is also culturally significant for the Kanak people, the indigenous inhabitants of New Caledonia. It plays a crucial role in their traditions, lifestyle, and economy.

The New Caledonia lagoon is not only a natural wonder but also a vital part of the region's heritage, offering breathtaking beauty and significant ecological value.