Located in the Gulf of Tonkin, the bay is recognized by UNESCO as the Natural World Heritage that contains some 1,600 islands and islets, forming a spectacular seascape of limestone pillars. Because of their precipitous nature, most of the islands are uninhabited and unaffected by a human presence. The bay’s outstanding scenic beauty is complemented by its great biological interest. It is a incredible place to explore and discover its many islands, coves and hidden grottoes.