Tarifa (13), an interesting old Spanish seaport, the most southerly town of Europe, 21 m. SW. of Gibraltar, derives its name from the Moorish leader Tarif, who occupied it 710 A.D.; held by the Moors for more than 500 years; still thoroughly Moorish in appearance, dingy, crowded, and surrounded by walls; is connected by causeway with the strongly-fortified Isleta de Tarifa.