Aruba Aruba () is a -long island of the Lesser Antilles in the southern Caribbean Sea, north of the Paraguaná Peninsula, Falcón State, Venezuela. Together with Bonaire and Curaçao it forms a group referred to as the ABC islands of the Leeward Antilles, the southern island chain of the Lesser Antilles.An autonomous region within the Kingdom of the Netherlands, Aruba has no administrative subdivisions.