All train services from Cork, Kerry, Ennis and Limerick to Dublin via Thurles tomorrow are sold out.
Cork are set to take on Galway in the GAA Senior Hurling Championship at Croke Park, followed by the meeting of Clare and Wexford.
Picture This are also playing a gig at Dublin's Malahide Castle, with Tate McRea booked for the Academy.
Irish Rail says passengers must travel on the train they've booked, and no alcohol is permitted on board.
