Bioko | Equatorial Guinea, Map, History, & Facts | Britannica
Bioko, Equatorial Guinea. Bioko, island of Equatorial Guinea, western Africa, lying in the Bight of Biafra (Gulf of Guinea) about 60 miles (100 km) off the coast of southern Nigeria and 100 miles (160 km) northwest of continental Equatorial Guinea. In 1973 the island, then called Fernando Po, was renamed Macias Nguema Biyogo Island …