If travelling from Dublin, head West, on N4/N5 route. Continue on N4 until you reach Longford, then take N5 West, for 'Westport' or 'Castlebar'.
Tarmonbarry is the first village you will drive through, 6 miles from Longford. Keenan's is the first building you will see as you cross the River Shannon, on the left hand side.
For Sat Nav - type "TERMONBARRY", via Longford.