San Felipe de Barajas Castle – Defense of the City: We begin at Cartagena’s most famous fortress, built by the Spanish to protect the city from invasions. Your guide will explain the strategic design of the castle, its secret tunnels, and the key battles fought against French and British pirate attacks. Learn about Don Blas de Lezo, the one-eyed, one-legged Spanish naval hero who led the defense against Admiral Vernon’s massive British fleet