How well protected is Britain's coast and its wildlife after Brexit? Chef and fisheries campaigner, Hugh Fearnley-Whittingstall joins Peter Gibbs to examine the health of our seas. Can our network of Marine Protected Areas be strengthened and expanded? What impact is climate change having on our waters? How can we lift the curse of plastic pollution from our beaches? Surfers, fishermen, campaigners and conservationists join Peter and Hugh to consider the issues. Producer: Jonathan Wiltshire