In Anglesey, Jules Hudson explores the site of a 19th-century shipwreck near Moelfre, where over 400 people perished. Helen Skelton learns about the women who helped win the war - not in factories, but in shipyards - in Sunderland. JB Gill begins his journey at Mersea Island Vineyard, where he's introduced to a surprising local speciality - beer brewed with oysters.

In southern Cumbria, Helen Skelton takes to the skies in a gyrocopter with veteran pilot Roger to explore a coastline often overshadowed by the Lake District to the north. In Cornwall, Jules Hudson joins marine scientists making waves with a serendipitous discovery - disco scallops. Further up the Bristol Channel, JB Gill faces the Somerset coast at Burnham-on-Sea, where tides race in, and mud flats can trap the unwary.