As a maritime country, of course Indonesia has the wealth of undersea which be a cultural heritage that created by god. On this blogging, the wealth of undersea which I want to discuss is the fish and reefs that decorate the various beaches in Indonesia, especially the beauty of the beach in the island Natuna (Riau Islands). It is not be stranger about the underwater beauty of the Natuna island especially for the travelers both from domestic and abroad. That is tje caused of tourists to return to this beach to add their holiday moment. Seeing the potential that exists, it is fitting for the local government to maintain the natural beauty of the underwater in order to increase foreign exchange and the regional economy. As a society, we are also obliged to keep the beach keep always beautiful with always maintaining the cleanliness of the beach for the ecosystem remains natural.