The colonial city of Grand-Lahou is located on the coastal strip, in 1975 it was relocated on land 18 km from the lagoon and sea waters in order to increase opportunities for economic, social, demographic, marine, river, environmental, tourist, industrial, commercial and financial activities. The city is situated where Bandama river and the Gulf of Guinea meet. It sits along the Atlantic Ocean with a 70km coastline.

It is a cosmopolitan population composed of indigenous avikams, didas, Apollos, Baoule, Malinke and the nationals of West Africa and some Lebanese. The main activities of these populations revolve around fishing, agriculture, petty trading, transport and small trades.