The Piranhas River ( pt, Rio Piranhas-Açu), also known as the Açu River, is a river of northeastern

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. It originates in southeastern Paraíba state, near the border with Ceará, and flows north-northeast through Paraíba and

Rio Grande do Norte Rio Grande do Norte (, , ) is one of the states of Brazil. It is located in the northeastern region of the country, forming the northeasternmost tip of the South American continent. The name literally translates as "Great Northern River", re ...

states to empty into the

Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...

near

Macau Macau or Macao (; ; ; ), officially the Macao Special Administrative Region of the People's Republic of China (MSAR), is a city and special administrative region of China in the western Pearl River Delta by the South China Sea. With a p ...

. Its chief tributary is the Seridó, which originates in the Borborema Plateau of central Paraíba and flows northwest to meet the Piranhas.

References

Rivers of Paraíba Rivers of Rio Grande do Norte {{RioGrandedoNorte-river-stub