Algeciras is a port city in the south of Spain, and is the largest city on the Bay of Gibraltar. The Port of Algeciras is one of the largest ports in Europe and in the world in three categories: container, cargo and transhipment. It is situated north-east of Tarifa on the Rio de la Miel, which is the southernmost river of the Iberian peninsula and continental Europe. It is the biggest city among its metropolitan area, that also includes the municipalities of Los Barrios, La Linea de la Concepcion, Castellar de la Frontera, Jimena de la Frontera, Jimena de la Frontera, San Roque and Tarifa.