Over a quarter of a million people have so far travelled on the Luas line from Sandyford to St Stephen's green, and it is estimated that over 300,000 people will have used the tram service by teatime this evening.
Travel on the city's light rail system has been free of charge since it opened on Wednesday, and free travel continues until the last tram tomorrow night.
Passengers will have to pay to use the LUAS from Monday morning.
