Mirador Poeta Domingo de Mena Monument · San Roque, Campo de Gibraltar, Cádiz Image of San Roque, not of the place itself. A viewpoint over the Bay of Algeciras that preserves two cannons used by the Spanish army during the Great Siege of Gibraltar (1779-1783). cañones de 1779-1783 Photo: Bernardo Baggio (CC BY 2.0) What to see and do in San Roque