My Grandparents were born in County Mayo - My brother & I visited there in August 2001 - Bangor Erris - Belmullet - Ballina -
Castlebar [Welcome Inn for good entertainment] - Westport - Bed and Breakfasts are all nice as are the pubs.   Advice Bring Your Longjohns! If you want to see leprechauns, visit the moors [day or night] along the coast. Ed