Gibraltar's physical advantages are immediately apparent: water protects three sides, high ground dominates the approaches, and the town sits beneath a massive natural fortress. The same geography creates a supply problem because fresh water normally comes from the land. Rain collection, small beer, and limited purification matter alongside walls and guns. A seemingly ideal defensive position can still depend on mundane logistics.
Chapter · 9:19-12:00
Gibraltar's terrain protects the fortress but complicates its water supply
A tour of the Rock explains how steep ground and surrounding water favored the defenders while scarce fresh water remained a persistent logistical weakness.