Lough Derg, County Donegal
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Lough Derg is the largest lake in the Republic of Ireland. It borders parts of Galway, Clare, and Tipperary.
Lough Derg is also the name of a smaller lake in County Donegal. This Lough Derg has an island called Station Island, which has been a place of pilgrimage since ancient times. It is also called St. Patrick's Purgatory and is very busy to this day.
Here pilgrims are barefoot and fast on black tea/coffee and dry toast (one meal per day) for the 3 day pilgrimage. There are penitential beds that are part of the stations that pilgrims perform.
--External Link-- http://www.loughderg.org/