Europe-Places.com has listed approx 5 Pilgrimage places in Co. Donegal. Some of the Top rated Pilgrimage places in Co. Donegal are- Lough Derg The Sanctuary of St Patrick, Lough Derg The Sanctuary of St Patrick, Lough Derg The Sanctuary of St Patrick, Tura - Glencolumbkille Pilgrimage Walk & Lough Derg The Sanctuary of St Patrick.