The well at the northern tip of Fenloe Lake in County Clare is different: there is no spring here at all. Instead, the structure is built around a bullaun stone, one of those shallow, cup-like depressions worn or carved into rock that appear at early Christian and prehistoric sites across Ireland, often associated with ritual use. The water that gathers in such a depression is rainwater and runoff, yet the site has clearly functioned as a focus of devotion in the same way as its spring-fed equivalents elsewhere.

The antiquarian Thomas Johnson Westropp, writing in 1902, recorded the customary small offerings left near the well: rags, broken china, and similar tokens. This practice, known in Irish tradition as leaving votive offerings or "clooties", is common at holy wells throughout the country, where cloth tied to a nearby tree or object was believed to carry away ailment or petition. Westropp's account places the site within a wider cluster of monuments: Tomfinlough church and its graveyard lie roughly forty metres to the south, suggesting that the well occupied its usual position at the margin of an early ecclesiastical enclosure, just outside the boundary of formally consecrated ground yet closely tied to it.