Gethin Jones delivers the ultimate guide to a countryside summer featuring wildlife, food, gardening and outdoor adventure, all brought to you by a selection of favourite faces. In this episode, Chris Packham and Megan McCubbin visit the stunning Walney Island off the west coast of England, Arit Anderson meets a community of gardeners who have been prescribed gardening to help mental and physical illness, and Mary Berry shows us how to cook a perfect summer pudding.