Holyhead Port will remain closed to ferry services until at least January 15, it has been confirmed.
It had been hoped the Welsh port would reopen this week following heavy damage suffered during the recent Storm Darragh weather event.
The update means the travel plans for around 100,000 people over the festive period have been upended.
As well as both Irish and Welsh governments being in constant contact over contingency plans, main ferry operators like Stena Line and Irish Ferries have been busy looking at alternative routes and ports.
In a statement, Stena said: “Stena Line has been working hard to provide alternative travel arrangements for customers during the busy festive period. Customers are currently being contacted and affected passengers are advised to amend their booking online free of charge or through the Contact Centre on 0344 770 7070 (UK)/ + 353 1 907 5555 (ROI).
“Stena Line is offering sailings for passengers and freight from Dublin to ports in Birkenhead and Fishguard. In addition, a new freight route from Dublin to Heysham has been added to assist continuity of trade flows. The company has also added additional sailings on the Belfast – Cairnryan route this weekend. Currently there is limited availability on the Belfast – Liverpool and Rosslare – Fishguard routes.”
Stena Line would like to apologise for the inconvenience caused and assure customers that the company is doing everything in its power to mitigate the effects of the closure on passenger and freight traffic.