Lord Airey's Shelter is in Gibraltar, the British Overseas Territory at the southern end of the
Iberian Peninsula. The shelter is located underground, near the southern end of the Upper Rock Nature Reserve, just north of Lord Airey's Battery, and adjacent to the
Mediterranean Steps. It is positioned on Ministry of Defence property. The primary room of Lord Airey's Shelter measured in length and in width. Little is known about its function. However, due to the similarities between Lord Airey's Shelter and Operation Tracer's Stay Behind Cave, it is believed that the shelter may have served as a training site for the members of Operation Tracer. In addition, it may have stored provisions in advance of the military operation. Near the south end of the room, on the east wall, a stove was positioned. Adjacent to this, an exit to the Mediterranean Steps was constructed. On the west side of the south end of the shelter, a passage communicated with the tunnel system. In addition, the amount of tunneling in the area of Lord Airey's Shelter during the Second World War may have served as cover while Operation Tracer's Stay Behind Cave was built. Another operation was codenamed
Monkey and its intention was to create decoy caves that could be discovered by an invading army. The chosen locations were
Beefsteak Cave and
Coptic Cave. == Recent history ==