Join author Gareth E Rees and academic Fiona Stafford on a journey through hidden spaces, forgotten gardens and natural and man-made phenomena that tell us about our past, present and future. Rees is author of Sunken Lands: A Journey through Flooded Kingdoms and Lost Worlds, which uncovers what our submerged past and shifting boundaries between land and water can tell us about our imminent future as rising sea levels transform our planet once more. In Time and Tide: The Long, Long Life of Landscape, Stafford combines local, literary and her own family history to look at the natural and human forces that transform places, and where we can find clues to the past. In conversation with Tom Bullough, author of 5 books, most recently, Sarn Helen - A Journey Through Wales, Past, Present and Future.