El Morro, officially known as Fuerte San Felipe del Morro, sits atop a high promontory overlooking the entrance to San Juan Bay. It is the result of the efforts of many different Spanish engineers over a period of more than 200 years and is one of the largest forts built by the Spaniards in the Caribbean. El Morro is part of the city of San Juan and can be easily done of foot. It has great photo opportunities and it lies next to the harbour.