Corisco, also known as Mandj or Mandyi, is a small island in Equatorial Guinea located 29 km southwest of the Río Muni estuary near the Gabon border. Covering an area of 14 km² and reaching a maximum elevation of 35 meters, the island derives its name from the Portuguese word for lightning, reflecting its historical ties to Portuguese exploration. The island's main settlement is Gobe, and Corisco has historical significance due to its role in regional maritime activities during the colonial era.