Trains are running on all routes this Bank Holiday Monday.
Iarnród Éireann is operating a revised timetable so people should check times before travel.
Spokesperson Barry Kenny has this advice for passengers:
"There are some computer services in particular operating to a Sunday service, but Intercity trains will be busy, and we would advise people to book ahead of travel. Obviously the end of the Bank Holiday weekend, and the last day of Bloom means it'll be busy throughout today".