The well at Rathmichael, tucked to the west of the church on the eastern slopes of Carrickgollogan in south County Dublin, is a quiet exception. As recorded as far back as 1914, it has no tradition of being a holy well and no reputed curative powers, which, in the Irish context, makes it something of an oddity worth pausing over.

The well sits within an ecclesiastical enclosure, the kind of roughly circular or oval boundary that typically marks the footprint of an early medieval monastic or church settlement. These enclosures, often visible as raised ground or curving field boundaries, were the defining feature of early Irish Christian sites, and finding a water source within one was practical as much as it was symbolic. What is notable here is the absence of the usual layering of legend. Across Ireland, wells within or near such sites were almost invariably drawn into the orbit of local saint veneration over time. The Rathmichael well, according to a 1914 source cited in the archaeological record compiled by Geraldine Stout and Padraig Clancy, simply was not. Whether that reflects a genuine gap in tradition or merely an absence of surviving record is difficult to say.

The site lies on the eastern slopes of Carrickgollogan, a hill in the Rathmichael area that also gives its name to the surrounding landscape in south Dublin, not far from Shankill. The church remains associated with the enclosure are catalogued under the Sites and Monuments Record reference DU026-050001. The well itself sits to the west of the church. The area rewards a slow visit on foot, where the relationship between the enclosure, the church ruins, and the well becomes legible as a coherent early settlement rather than a scatter of unrelated features. Given that the well carries none of the votive associations common elsewhere, there are no rags, offerings, or patterns to look for, just the well itself, sitting in its enclosure, doing the unremarkable work of supplying water to whoever once lived and worshipped here.