Grand-Popo, located in the Mono Department of southwestern Benin, is a coastal town with a rich history tied to the ancient kingdom of Hulagan, once inhabited by the Hula people. Covering 289 square kilometers and home to over 57,000 residents, the town grew around the transatlantic slave trade but has since faced significant erosion that has destroyed much of the old settlement. Today, Grand-Popo is known as a center for voodoo culture and the location of Villa Karo, a Finnish-African cultural center. The town's economy is primarily based on fishing, and it continues to attract visitors interested in its cultural heritage and coastal charm.