La batalla naval de Algeciras de 1801 Historical milestone · Algeciras, Campo de Gibraltar, Cádiz In 1801 the Bay of Algeciras was the scene of a naval clash between Franco-Spanish and British squadrons; the coastal batteries of Santiago, San Antonio and Isla Verde protected the French ships anchored in the bay. 1801 Photo: Andy Maguire (CC BY 2.0) What to see and do in Algeciras