The Marromeu National Reserve covers a total area of 1,500 km2, and is located in the Marromeu District, Sofala Province, in the Zambezi River Delta. The Reserve borders Official Coutada n° 14 to the east, bordered by the Rio Micelo (locally called Rio N’céu, which is an arm of the Zambezi River.

The Micelo River separates the provinces of Sofala and Zambezia). To the South, the Reserve is limited by the Indian Ocean and to the West by Official Coutadas n° 10 and 1. It was created by the Legislative Diploma nº 1995, of 23 July 1960.

This conservation area is a breeding ground for the population of buffaloes and other species of wild fauna that feed the Official Coutadas nº 10, 11, 12 and 14, for the development of sport hunting. The national aerial fauna census carried out in 2018 estimated the existence of around 64.800 buffaloes in the country.

The Marromeu Complex has a landscape consisting of savannas, swamps, miombo forests and mangroves, providing habitats for a large number of plant and animal species. This Complex is considered an “important area” of biodiversity hotspot containing several large mammals, such as the African buffalo, hippopotamus, zebra, lion, leopard and sable.

The avifauna is equally rich and the region is used for nesting the white pelican, Pelecanus onocrotalus, and gray Pelican, Pelecanus rufescens and about 20% of the carunculated crane population, Bugeranus carunculatus, in the world.

Mangroves are home to the African osprey, Haliaeetus vocifer, herons, kingfishers, flamingos, including the lesser and common flamingo, curlew and cormorant.