Archipelago of San Andrés, Providencia and Santa Catalina (Spanish: Archipiélago de San Andrés, Providencia y Santa Catalina); or colloquially San Andrés y Providencia is one of the departments of Colombia. It consists of two island groups about 775 km (482 mi) northwest of mainland Colombia and 220 km (140 mi) from the coast of Nicaragua, and eight outlying banks and reefs.