The Rio del Rey (also called Rio del Ray) is an

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environm ...

of a

drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...

West Africa West Africa or Western Africa is the westernmost region of Africa. The United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mau ...

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west- central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; th ...

. It is located in the eastern area of the

Niger River The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Mali ...

system.African Basins
pp. 173-176 The Cameroon volcanic line separates Rio Del Rey from the Douala basin. Rio del Rey has been described as an estuary in which "the two rivers N'dian and Massake flow out".Swedish Ventures in Cameroon, 1833-1923: Trade and Travel, People and Politics - Knut Knutson
pp. 127-133. The mouth is close to the

border Borders are usually defined as geographical boundaries, imposed either by features such as oceans and terrain, or by political entities such as governments, sovereign states, federated states, and other subnational entities. Political bo ...

with

Nigeria Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of G ...

and has connections to the Cross River estuary from which it is separated by the

Bakassi Bakassi is a peninsula on the Gulf of Guinea. It lies between the Cross River estuary, near the city of Calabar and the Rio del Ray estuary on the east. It is governed by Cameroon, following the transfer of sovereignty from neighbouring Niger ...

peninsula. The Rio del Rey estuary has been designated as a

Ramsar site A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O) *** Permanent 8 ha (P) *** Seasonal Intermittent < 8 ha(Ts) **

See also

References

Further reading