The world's largest car ferry, Ulysses, is operated by Irish Ferries on the Dublin Port–Holyhead route; Stena Line also operates between Britain and Ireland.
Mobil Terbesar Dunia Ferry, Ulysses, dioperasikan oleh Feri Irlandia pada rute Dublin Port-Holyhead; Stena Line mengoperasikan Juga Antara Inggris dan Irlandia.