New Caledonia Barrier Reef

 Located in New Caledonia in the South Pacific is the second longest reef after the Great Barrier but isn’t as popular as the Belize Barrier Reef. Reaching a length of 1,500 kilometers (930 miles), the reef encloses a lagoon of 24,000 square kilometers (9,300 sq miles). The average depth of the reefs are about 25 meters (82 ft).

Much of the enormous 1,000 odd species diversity in New Caledonia is yet unclassified as new species of fish and invertebrates.The reefs provide one of the main nesting sites for the Green turtle and is a popular place to spot the rare dugong.