We will be taking a train from Dublin to Killarney and wonder is it is possible to stop along the way for short tours of Rock of Cashel or Blarney Castle. We don't want to drive. It seems that Thurles is close to the Rock of Cashel and Blarney is close to Mallow. Are there car hire companys that will pick you up at these train stations and give you a round trip tour toeach of these destinations. A car hire from Killarney will take a whole day. Seems we could save time by doing this, if it is possible.