Because of Yorke Bay's strategic position as one of only three bays close to both Stanley and the airport with beaches capable of supporting an expected amphibious landing on the east coast of East Falkland, Yorke Bay beach was heavily mined with hundreds of anti-personnel and anti-tank minimum metal mines during the 1982 Argentine occupation of the Falkland Islands. The British forces eventually marched on Stanley from the landward side to the west instead, but the minefields around the airport remained and were never removed. Prior to the war, Yorke Bay was a popular summer swimming and recreation site for local residents, but the entire northern coast of the Port Stanley Airport peninsula have been fenced and marked as strictly off-limits since a tractor and bulldozer were destroyed by an anti-tank mine while attempting to lay a pipeline in the area in 1986. A Cranfield University assessment dismissing the feasibility of demining Yorke Bay noted that the sand dunes had expanded considerably since 1982, burying the mines too deeply for advanced detection equipment and disrupting the orderly lines in which they were originally laid. At the same time, however, any large storm could potentially cause large numbers of mines to suddenly resurface. To recover them all would thus require mass excavation of the entire beach area with armored digging equipment, a task that would be expensive, dangerous, unlikely to definitively succeed, and certain to do severe damage to the "internationally important" Magellanic penguin rookeries. Local residents and officials have also expressed opposition to the idea: Falklands GovernorHoward Pearce stated that the high probability that "only 95 percent" of the mines would end up being accounted for would actually "bring a sense of complacency to the community and increase rather than reduce the chance of injury." As such, the bay is likely to remain permanently impassable for humans; on the positive side, the penguins have benefited from their undisturbed control of the beaches, resulting in an unplanned, man-made wildlife refuge where tourists can view the penguins safely from a distance without disrupting their habitat.
