In this episode, Freyja travels to the Durdle Door in Dorset to find out how the sea creates Bays, Headlands, Arches and Stacks through erosion. We also learn about how geology creates different types of beaches, looking at the White Cliffs of Dover. Finally, we explore the reasons people choose to live near the Coast, the importance of Ports and how technologies like Seawalls and Breakwaters are used to manage the effects of the sea on coastlines.