For transport of the more watery kind, nip over to Holyhead, Liverpool or Mostyn for a day or two. Connected by a regular bus and taxi service, Dublin port (www.dublinport.ie), the largest harbour in Ireland, is situated in close proximity to Dublin city centre. Six operators offer up to 18 daily crossings to the UK and Continental Europe, transporting over a million passengers across the Irish Sea each year. Dublin’s second port at Dun Laoghaire (www.dlharbour.ie) connects the south of Dublin with Holyhead in Wales on a fast-boat service in approximately 100 minutes. Foot passenger day trip passes to Britain start at €28 (www.stenaline.com).