The major rivers in Guyana are the Corentyne, Berbice, Demerara and Essequibo Rivers – all of which flow northwards into the Atlantic Ocean.

Other significant rivers are the Potaro, Cuyuni, Mazaruni and Rupununi Rivers which are all tributaries of the Essequibo River draining the north-western parts of the country.

The Takatu and Ireng Rivers form a portion of the border with Brazil and drain southwards into Brazil.

The Essequibo River is the longest and widest river in Guyana while the Corentyne is the second longest and whose course forms Guyana’s border with Suriname.