Alto Velo Island is a small uninhabited island south of the island of Hispaniola in the Caribbean Sea. Its maximum height is about 152 metres (499 ft) above sea level. It lies on an underwater mountain range which continues to Beata Island and the southwestern coast of the Dominican Republic. It has an area of 1.02 km2 (0.39 sq mi) and is 1.4 km (0.87 mi) long, being oval in shape.