The Soda Bread Mines in Co. Donegal are worth a visit; as are Lough Guinness and Lough Harp in Connemara - great drinking!
The Black Pudding bushes in Glendalough are impressive, also the Leprechaun Millinery & Cobblery at the same location.
Check them out, and have a ball at the Cannibal Cafe in Cork.
Seamus