The land changes over time. In my town there are ruins of a Roman fish salting factory where boats would sail right up to in order to pickup their cargo then go out through the harbor and back to Italy. In 755 the Moors landed in that same harbor to establish a kingdom that would last until 1489, when they left Spain via that same harbor. Now no sign of the harbor or the channel to the salting factory remain.
Abu Abdallah Boabdil had the worst mom ever.