The writer Julia Blackburn has lived much of the last 40 years on the Suffolk coast where she has written biographies, poetry, radio plays and accounts of her own life. In recent years it is the landscape that has captured her imagination and her most recent book, Time Song, tells of how she became fascinated with the area known as Doggerland - a mass of land that once joined Suffolk and Holland and which is now submerged beneath the waves of the North Sea. Helen Mark joins Julia for a virtual walk along the Suffolk coast, during which she reveals how this ancient seascape has influenced her work
