Streets in Dublin city centre were closed over the weekend to allow a convoy of new giant brewing vessels to be delivered to St James's Gate.
The giant tanks – some of which can hold one million pints of Guinness – are part of the €153m expansion and re-development of the St James's Gate brewery,
The journey from Dun Laoghaire took six hours, travelling at four to six kilometres an hour.
There will be three more late night convoys through the city this week, which require further road closures. Each container weighs up to 28 tonnes, is worth about €500,000 and is about 26 metres long. The new extension to the Guinness plant is due to be operational by June.