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HistoryNature Reserve

Great Siege Tunnels

Hand-hewn 18th-century military tunnels from the Great Siege, with original cannon emplacements overlooking the Spanish border.

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Duration

30-45 minutes

Location

Upper Rock Nature Reserve, Gibraltar

Price

Included with Nature Reserve ticket (30 GBP adults)

Rating

4.5(7,600 reviews)

About Great Siege Tunnels

The Great Siege Tunnels are a remarkable network of galleries hand-hewn through solid limestone during the Great Siege of Gibraltar (1779-1783), when Spanish and French forces attempted to recapture the territory from Britain. Royal Engineers, led by Sergeant Major Henry Ince, devised an ingenious plan to bore tunnels through the Rock's north face to mount cannons overlooking the besiegers. Visitors can walk over 350 feet through the 200-year-old galleries, viewing the embrasures with their cannons still aimed across the isthmus toward Spain.

Visitor Tips

The tunnels are cool inside - a welcome relief on hot days.

Read the information panels for fascinating details about the siege engineering.

Combine with the adjacent WWII Tunnels for a full military history experience.

The views from the embrasures across the isthmus to Spain are excellent.

Practical Information

Best Time to Visit

Any time; the tunnels maintain a constant cool temperature

Accessibility

Some steps and uneven surfaces inside the tunnels. Limited wheelchair access.

Book Your Visit

Secure your spot. Book online to skip the queues.

Included with Nature Reserve ticket (30 GBP adults)

Book Now

Booking via official website. Prices may vary.

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