What island lies west of africa?

Multiple islands lie west of Africa. The island nations of São Tomé and Príncipe and Cape Verde lie west of Africa, as well as Equatorial Guinea's (an African nation) island of Annobon. The Spanish Canary Islands, the Portuguese Azores and Madeira Islands, the British islands of Saint Helena, Ascension, and Tristan da Cunha, and the French island of Tromelin.