P&O Ferries - Operates routes between Dublin and Liverpool and between Belfast and Troon and Cairnryan. Brittany Ferries - Sails from Cork City to Roscoff in France. Shannon Ferries - Details of the internal Irish ferry service that operates across the Shannon Estuary between Killimer and Tarbert Stena Line - Operates a ferry between Dublin and Holyhead daily. Irish Ferries Enthusiasts - A guide to Ireland's ferry services, past and present. Celtic Link Ferries - Operates a route between Cherbourg in France and Rosslare Europort in Ireland. Irish Ferries - Detailed information covering travel to and from the UK and France. Features include fleet information, real-time arrivals and departures, route, schedule and fare details, online booking and package holiday offerings for Ireland, the UK and France.