An archaeologist strolling along the coast of Northumberland points out the signs of a tsunami that played a part in the separation of mainland Britain from Europe. Just one of the many people talking about the coast and the landscape of the sea in this week's episode. Others include a birdwatcher, an environmental artist and a cross-Channel swimmer, who all reveal their personal connections with the landscape of the sea - as well as the beauty and mental healing people can gain from it and the pollution people cause within it. Presented by Helen Mark
