It is not the wall itself that makes this unremarkable-looking stretch of stonework unusual, but what it was buried in. The wall lay for centuries beneath a layer of peat, and a radiocarbon date taken from a sample of that peat returned a result of 1730 BP, meaning the organic material had accumulated roughly seventeen hundred years before the present. What you are looking at, when the tides and shifting sands allow it to appear, is a boundary marker from a landscape that has since been swallowed by bog and sea.

Peat forms slowly, building up in waterlogged conditions over long periods, and its presence here suggests that the surrounding area was once a wetland or boggy ground rather than an open beach. The wall predates that peat accumulation, which means it was already a feature of the land when the bog began to grow over it, pushing its origins back further still. G. F. Mitchell, who worked with the sample dating, published the finding in 1989. The broader archaeological context of this part of Kerry was later documented by A. O'Sullivan and J. Sheehan in their survey of the Iveragh Peninsula, published by Cork University Press in 1996. The wall sits roughly 250 metres east of another recorded site on the same coastline, suggesting this was once a more densely organised agricultural landscape than the present shoreline would imply.

Visibility depends entirely on conditions. The wall is only occasionally exposed, buried at other times beneath sand or shallow water, so there is no guarantee of seeing it on any given visit. Those who do catch it at a low tide and with sand drawn back will find traces of peat still clinging to the stonework, a small but legible record of how dramatically this part of the Kerry coast has changed over nearly two millennia.