Salı, 23:00 
Great Coastal Railway Journeys
Dun Laoghaire to Rosslare
Michael Portillo begins the final leg of his railway journey hugging the shores of the Atlantic and the Irish Sea. Today he travels from the capital of the Republic of Ireland, Dublin, on the DART suburban railway to the harbour town of Dun Laoghaire. The Geological Survey Ireland maps the nation's territorial waters. Michael joins the crew of the RV Malice to survey what lies beneath the waves in Dublin Bay. What secrets will they discover on the seabed?