Inside the doorway, a recess holds votive offerings left by those who have come to pray or petition, and a wooden box is fixed to the rear gable wall. The oval basin at the centre of it all measures roughly a metre across, ringed by a low curving stone wall that keeps the whole structure feeling deliberately bounded, almost intimate.

The association of such wells with specific feast days is common across Ireland, and this one is no different. Writing in 1923, the scholar Patrick Power recorded that devotions were paid here on the 24th of August, a date that corresponds in the Catholic calendar to the feast of Saint Bartholomew. Whether the well's dedication follows that saint or some older local observance is not recorded, but the practice of visiting wells on fixed calendar dates, known as a pattern from the Irish word patrún, was widespread throughout Munster and beyond, often combining prayers at the well with circumambulation and the leaving of small objects. The recess beside the doorway at Garryantaggart still accumulates such offerings, suggesting the tradition has not entirely lapsed.