The majority of sea services are through Dublin, Dun Laoghaire, Rosslare and Cork Ports, which are shown on the map to the left. Ireland's Shannon Region is within 3 hours drive from these ports. For full listing on sea access to Ireland please visit the sites listed below.
Irish Ferries: http://www.irishferries.com/
Stena Line: http://www.stenaline.com/
Swansea Cork Ferries: http://online.swanseacorkferries.com/
An internal car ferry is also available to/from Killimer in Co. Clare and Tarbert in Co. Kerry.