The Bonaire National Marine Park or BNMP is one of the oldest marine reserves in the world. It includes the sea around Bonaire and Klein Bonaire from the high water line to a depth of sixty meters (approximately 200 feet). The park was established in 1979 and covers 2700 hectares (6700 acres) and includes a coral reef, seagrass, and mangrove vegetation. The Lac Bay lagoon is also part of the underwater park.
In 1999, the underwater park received the status of national park from the Netherlands Antilles. The uninhabited island Klein Bonaire was added to the underwater park as a legally protected nature reserve in 2001. The west side of Bonaire teems with diving sites that are easily accessible from the shore. The dive sites around Klein Bonaire are accessible by boat for divers. With the exception of a small area, the BNMP is completely open to divers with a total of 86 public dive sites.