The site of Saint Nicholas' Well at Clonmines in County Wexford leaves no visible trace at ground level, yet people once gathered here on the 6th of December each year to observe a pattern, the traditional local festival of prayer, pilgrimage, and communal gathering held on a saint's feast day. The well lies within a bawn, the defensive walled enclosure attached to a tower house or fortified structure, here associated with the church of the Augustinian friars at Clonmines.

The pattern on the feast of Saint Nicholas was recorded around 1840 by John O'Donovan, the scholar and antiquarian whose fieldwork for the Ordnance Survey captured countless details of local tradition and place-name lore that would otherwise have been lost entirely. His notes on Clonmines were later published in O'Flanagan's 1933 edition of the Ordnance Survey correspondence. The well itself has since vanished beneath the ground. A resistivity survey, a non-invasive geophysical technique that maps subsurface features by measuring variations in soil conductivity, identified what may be a paved area close to the recorded site, which could represent some kind of formal setting associated with the well. The church dedicated to Saint Nicholas stands roughly 180 metres to the west-south-west, suggesting this corner of the medieval settlement carried a particular concentration of religious life around the cult of the same saint.