Guinea-Bissau is a tropical nation on West Africa's Atlantic coast that is known for national parks and natural life. The forested, inadequately populated Bijagós archipelago is an ensured biosphere hold. Its primary island, Bubaque, frames some portion of the Orango Islands National Park, a living space for saltwater hippos. On the territory, the capital, Bissau, is a port with Portuguese frontier structures in its old downtown area.