Irish Rail operates a train from Dublin to Trá Mhór every 4 hours. Tickets cost $35 - $55 and the journey takes 2 h 11 min. Bus Eireann also services this route hourly. Alternatively, Dublin Coach operates a bus from Dublin to Trá Mhór hourly. Tickets cost $10 - $15 and the journey takes 2 h 25 min. 2 other operators also service this route.
How to get from Dublin to Trá Mhór
From Heuston Train Station train to Waterford Train Station, walk to Waterford, Waterford Bus Station, then line 360 bus to Riverstown. 3 h 3 min 47€. From Dublin City South, Burgh Quay bus to Waterford, Waterford Bus Station then line 360 bus to Old Waterford Rd. 3 h 19 min 24€. From Dublin drive to Trá Mhór. 1 h 52 min 23€.