Gibraltar Under Siege is a multi-stage endurance race designed for athletes seeking a true test of resilience. The course runs across a variety of terrains, using the challenging slopes and ridgelines of the Rock, and pushes participants through historic tunnels, rugged defences, and around the peninsula itself. Athletes will race past legendary landmarks tied to the storied sieges of the 1700s, with the imposing Rock ever-present overhead. This event rewards stamina, tactical focus, and pure determination—grit is valued more than comfort, and each stage delivers a demanding athletic challenge. Success here depends not just on speed, but on maintaining control, strength, and focus from the first kilometer to the last.