Abiosso is a town in Côte d'Ivoire's Sud-Comoé region. The city's population is primarily composed of the Anyi Sanwi ethnic group, a branch of the Akan people. Once part of the Krindjabo kingdom, the city also served as a staging point for Marcel Treich-Laplène's early explorations of Côte d'Ivoire.
Chapi