This earth-fast stone, firmly embedded in the poorly drained ground, bears witness to both prehistoric and early Christian artistic traditions. The rock art begins with two cup marks; shallow, circular depressions pecked into the stone’s upper surface that date back to Ireland’s Bronze Age, somewhere between 2500 and 500 BCE.

Just three metres south of this decorated boulder, the cliff face reveals another intriguing feature. A natural rock outcrop protrudes from the northern edge, creating a small cave or rock shelter that frames views of the bay beyond. It’s here that ancient and medieval worlds collide in the most unexpected way. Below the prehistoric cup marks, barely visible to the untrained eye, someone carved the faint outline of a bishop centuries later. This naive figure shows the holy man standing in a boat, his crosier held aloft, with letters spelling out his name carved to the left above his head.

The juxtaposition of these two distinct periods of rock art speaks to the enduring significance of this coastal location. Prehistoric peoples marked this spot for reasons we can only speculate about; ritual significance, territorial boundaries, or astronomical alignments, whilst early Christians later appropriated the same sacred stone to commemorate their own religious figures. The bishop in his boat might reference a sea journey, perhaps a pilgrimage or missionary voyage across the waters of Trawbreaga Bay, forever etched into the same rock that Bronze Age inhabitants once considered worthy of decoration.