Ferry services | nidirectWhether you want to go abroad, across the Irish Sea or simply avoid traffic congestion on the way to work, a ferry service may be the answer. There is a range of ferry services that offer a good alternative to road or air travel.Whether you want to go abroad, across the Irish Sea or simply avoid traffic congestion on the way to work, a ferry service may be the answer. There is a range of ferry services that offer a good alternative to road or air travel. Northern Ireland Ferry https://www.nidirect.gov.uk/articles/ferry-services