‘Lough Derg is in the centre of a lake in the wild and gloomy mountains of Donegal, and can only be approached by boat. The property in which it lies belongs to the Leslies of Glasslough. They have leased the ferry of the island to certain persons, who were contracted to pay them two hundred a year. I think it was in the year 1796, that a boat filled with ‘pilgrims’, as they are called, was lost, on its way across to the lake, owing to the drunkenness of the boatmen.
My father’s anecdote, or rather legend, went on to state that there was a holy priest in the boat who, when it sank with its freight, deliberately walked on the waters of the lake until he reached the island in perfect safety. I recollect observing to my father when he told me this legend: ‘It is strange that if he had the power of walking upon the water, he had not the power of saving the boat and all that were in it.’ He paused and looked at me, but said nothing.’
Wiilliam Carleton’s Autobiography, 1896
Pilgrimages to Lough Derg traditionally, as well as latterly, began in late May or early June, and continued until the Feast of the Assumption, 15 of August.
During the eighteenth and nineteenth century Station Island was often referred to as Saint Patrick’s Purgatory, a name that was adopted from a cave on the island. The cave itself received the name through a legend, where Saint Patrick prayed to God for assistance in converting the pagan Irish, and God, answering his prayer, showed Patrick a cave which led to purgatory, where the horrors of hell could be viewed by pilgrims. The cave remained accessible to pilgrims who visited the island up until 1632, when the cave was closed by order of the Lord Lieutenant.
The Lough Derg Pilgrimage remains one of Ireland’s most popular pilgrimage sites, and accounts of pilgrimages to the island date back to the twelfth century, with oral accounts bringing the site back to the fifth century. Shane Leslie bequeathed the site to the Bishop of Clougher in 1960.