It is a flooded forest with a high canopy, dense undergrowth and has a muddy floor.

It has not been disturbed very much by outside influences and so remains largely pristine as getting through this forest is called "almost impossible".

[3] The Congo River separates this ecoregion from the Eastern Congolian swamp forests to the south.

The permanently flooded swamp forests are home to extensive stands of Raphia palm.

They include:[5] Seven areas are designated Ramsar Sites (wetlands of international importance).