The one near the Cabra Gate entrance to Phoenix Park in Dublin's north city belongs to a different category entirely: it has left no visible trace whatsoever. No carved stone surround, no votive offerings, no worn path leading to it. The ground has simply swallowed it, and the surrounding area has moved on without it.

The well sits within a triangle of disused land just outside the park walls, in a low-lying, partly wooded pocket that has, over time, drifted into use as a dumping ground. The notes that record its existence are sparse, which is itself telling. Across Ireland, holy wells were focal points for local devotion and were frequently documented by the Ordnance Survey in the nineteenth century, often with accompanying folklore and associated saints' names. This one has survived in the record only as a location, stripped of nearly all its context. Whether it was ever a site of active pilgrimage or simply a functional water source that acquired a degree of local significance is now impossible to say with any confidence.

For anyone curious enough to seek it out, the Cabra Gate offers the most practical point of reference, situated along the northern boundary of Phoenix Park. The triangle of land in question lies immediately outside the park walls at that entrance. It is not a managed or signposted site in any sense, and the overgrown, low-lying character of the ground means there is nothing to guide the eye once you arrive. The interest here is almost entirely conceptual: the gap where something once was, the category of place that persists in historical registers long after the physical thing has gone. If you go in winter, when the leaf cover is thinner, you will at least get a clearer sense of the terrain.