I have friend that will be in Dublin for a few days in November. His wife deperately wants to visit Knock Shrine. They prefer not to rent a car. He contacted the Irish Tourist Board and told the only way to get there was a 5 1/2 hour multiple bus ride each way! I looked for one day tours from Dublin but don't see any. I only found 1 airline that flys to Knock from Dublin and that is in the evening and returns in the morning. Does anyone know of a 1 day tour from Dublin???? Any other options?