The Great Siege Tunnels
How soldiers carved a fortress from stone.
In 1779 the garrison of Gibraltar was surrounded by Spanish and French forces on land and sea. The siege would last nearly four years.
A British officer proposed digging through the Rock itself to place cannons where the enemy could not reach them. Sergeant-Major Ince led the work.
With sledgehammers, crowbars and gunpowder, the soldiers opened galleries high in the limestone. The cannons arrived. The siege was broken.
Walk these tunnels today and listen to the distant echo of that effort — human hands against stone, inch by inch.
Where to listen
- Listen at the ticket entrance, before the first gallery: inside, the passages are narrow and echo heavily.
- It pairs naturally with a visit to the Moorish Castle a few minutes further down the road.
What to look for
- The embrasures cut through the north face, each one aimed at the isthmus and Spain beyond.
- Tool marks on the rock: this was hand-digging with sledgehammer, crowbar and gunpowder.
- The change in air temperature a few metres inside the galleries.