On a 15-mile walk in North Yorkshire, Kate sets off from the picturesque settlement of Robin Hood's Bay, where archaeologist Maria explains how, in the 18th century, the fishing village's position made it an idea drop-off point for contraband shipped from Holland and France. From here, Kate heads south along the coast, meeting up with geologist Will, who reveals what dinosaur footprints can reveal about the creatures that once roamed the area. After arriving at her destination in Scarborough, Kate dons her wetsuit to join a group of swimmers braving the North Sea.

Starting at Dunwich Heath, Kate walks an 11-mile stretch of the Suffolk coastline - one of the fastest eroding in Europe. The naturalist also finds one of the country's biggest freshwater reed beds, and learns about the ancient art of thatching.