Gabon is a country located on the west coast of Central Africa. It is known for its extensive rainforests, rich biodiversity, and significant natural resources, particularly oil and minerals. The country's terrain includes coastal plains, mountains, and savannas. The coastal area is characterized by lagoons and estuaries, while the interior consists of dense rainforests and hilly regions.

Fernan Vaz Lagoon, also known as Lagune Fernan Vaz or Nkomi Lagoon, is a significant coastal lagoon in Gabon, located in the Ogooue-Maritime Province. The lagoon is situated along Gabon's Atlantic coast, approximately 20 kilometers south of the town of Omboue. It is one of the larger lagoons in Gabon, encompassing a diverse network of waterways, islands, and mangroves.