It is situated on the coast some 75 km (47 mi) to the west of Abidjan, between the mouth of the Bandama River and the Ébrié Lagoon, and occupies an area of about 17,000 hectares (42,000 acres).

To the west lies the Bandama River and to the east the Ébrié Lagoon, the park being traversed by the navigable Asagni Canal which connects the two.

The park is surrounded by slightly higher ground and consists of a broad, often waterlogged, basin in which the water level fluctuates.

About two thirds of the park consists of swamps dominated by mangroves and there is additionally some moist forest and coastal savanna.

[3] The primary forest is dominated by Nauclea diderrichii, Berlinia occidentalis, Strombosia pustulata, Scottellia klaineana, Lovoa trichilioides, Gilbertiodendron preussii, Discoglypremna caloneura, Parinari excelsa, Guarea cedrata, Nesogordonia papaverifera, Erythrophleum ivorense, Tieghemella heckelii, Klainedoxa gabonensis, Lannea welwitschii and Heritiera utilis.