According to the story, the stone was thrown into the sea at some point, and yet it returned, reappearing on the hillside as though nothing had happened. That boulder, roughly 0.8 metres high, stands to the north of a holy well known locally as Tobar Muire, meaning the Well of Mary, and its presence gives the site a quietly unsettled quality that the surrounding landscape of rock and inlet only deepens.

The well itself is not a constructed basin or a tidy stone-lined pool but something more elemental: a small, irregular hollow in a natural rock outcrop, sheltered on its western side by a low drystone canopy just over a metre high. Drystone construction, in which stones are stacked without mortar, is a technique with deep roots across the west of Ireland, and here it has been used to give a modest degree of protection to what would otherwise be a bare depression in the rock. A few metres to the north-east lies a rectangular arrangement of small boulders, oriented roughly east to west and covering a patch of around two metres. This is identified as a possible leaba, a word meaning bed in Irish, which in the context of holy wells and pilgrimage sites typically refers to a flat stone or defined area where devotees would kneel or lie in prayer as part of a pattern, the traditional rounds of prayer performed at such sites. The detail was recorded by Tim Robinson in 1985, whose mapping and documentation of Connemara brought many such quietly persisting features into the written record.