'Marshman' Flavian Capes meets musician Frank Turner on an alternative guided walk around the salt marshes in Tollesbury, Essex. Flavian is a self confessed ‘archeology nerd’, local historian, boat builder and wild living enthusiast and has lived on boats for 30 years. Frank is a punk-folk singer songwriter who has released eight albums and toured worldwide. He has recently moved to the Essex coast. As a person with high functioning autism, Flavian uses walking and journeying to map his vast knowledge and relationship to the unique landscape around him.