The campaign - which allows all Child Leap Card holders aged 5 to 18 to travel freely - has been extended from two weeks to four.
It will run until July 28, with the aim of facilitating over a million free child trips.
This includes Dublin Bus, Go Ahead, Luas, Dart, Commuter Rail, and Bus Eireann services in Cork, Galway, Waterford, Sligo and Athlone.
Advertisement