The well sat roughly 150 yards from the shore, fresh and drinkable despite being so close to the sea. According to folklore collected from students at Arklow Convent, it never took on a salt taste, even when seawater mixed with it. That detail alone would have made it remarkable. It no longer exists in any visible form; the site now lies within a Roadstone quarry on a rocky east-facing slope, and the well, like a nearby spring known as Lady's Well, appears to have dried up once quarrying began.

The folklore attached to the well follows a familiar pattern in Irish devotional tradition, attributing its origin to Saint Patrick's arrival in Ireland in 432 AD. The story, as recorded from Arklow Convent schoolchildren for the Irish Folklore Commission's Schools' Collection in the late 1930s, describes Patrick and twelve followers running out of water during the crossing from Britain. When they finally sighted land and made for Arklow Rock, Patrick was the first ashore, and a well sprang up where his foot touched the ground. The curative properties of the water were noted too, with local people said to pray there and believe it could heal certain diseases. Yet even by the time schoolchildren in Arklow were writing this down, the well had already slipped from common knowledge. A separate account collected from Arklow National School noted plainly that it was not known by people of Arklow Rock, that it was overgrown with weeds, and that no visits had been made within living memory. A researcher writing in 1967 could find nothing recorded about it at all. The mass path it sat beside, worn into the rock by generations of people making their way to Sunday worship, has similarly vanished.