This cave is situated on the rock-face of a minor headland bounding the westerly side of the small beach of Traie Coan near Port St Mary.


The site was excavated in 1969-70 and 1975-76 by FJ Radcliffe, who found a midden sealed under slate slabs that had fallen from the roof and overlying an apparently undisturbed beach deposit, together with human bones, apparently from a single adult skeleton, were recovered together with worked bone points.


The remains were thought to represent either a prehistoric burial or a victim of a shipwreck. Radiocarbon dating of carbonised wood in the midden material suggested a date 1880 +/- 150 BP, but this does not directly date the human remains.