Neil Oliver and Tessa Dunlop present the ultimate guide to the UK's Irish Sea Coast - a sprawling, dynamic shoreline that fringes four nations, England, ScotIand, Wales and Northern Ireland. Building on a decade's worth of the best of Coast stories from these shores, Tessa goes in search of brand new tales and experiences for our Guide. She hitches a ride on a Liverpool tugboat to bring a giant container ship to shore, crosses the Irish Sea on a supersized luxury cruise liner, and seeks out a little-known surviving sister ship of the legendary Titanic.