A Panoramic View of the Harbor Entrance at Castillo San Felipe del Morro
A sweeping panoramic view of the entrance to San Juan Harbor, as seen from Castillo San Felipe del Morro. El Morro was the principal defender of the entrance to the harbor. Its massive cannon battery faced the sea, and in conjunction with Fort San Juan de la Cruz El Cañuelo, it could create a deadly crossfire for attacking sea vessels.