The most southerly of three dark stones, roughly half a metre in each dimension, has on its western face a carefully incised rectangle, inside which two small X shapes occupy the bottom left corner. Above them, a curved line that may have been an attempt at cursive lettering trails off into illegibility. On the top and eastern face of the same stone, someone has cut the inscription "JOE TY 1 JUNE 1956" with apparent deliberateness. The two sets of marks share the same style and are thought to be the work of the same hand.

What makes this stone quietly puzzling is the gap between its formal appearance and its uncertain meaning. The rectangle and paired X motifs have the look of something intentional, perhaps a personal symbol or an abbreviated notation, yet no context survives to explain them. The date, the first of June 1956, is precise enough to suggest a specific occasion, and the name Joe, with the abbreviated surname or place-marker "TY", implies a real individual rather than casual scratching. Whether the geometric incisions were made at the same sitting as the signature, or whether the signature was added to acknowledge an older mark already on the stone, is not recorded. About twenty metres to the north stands a sweathouse, a small stone structure of a type once used in Ireland for therapeutic sweating, similar in purpose to a sauna, and the proximity of the two features on this quiet lakeshore gives the spot an added layer of quiet interest.