Simon meets some of the Cumbrian characters with different visions for the future of England's biggest National Park, including a campaign group trying to protect the remaining red squirrel populations.

Simon looks at the impact of humans on England's biggest and most popular national park. He goes wild swimming in the crystal-clear lake of Buttermere, before taking a look at the less-fortunate Derwent Water.

Simon explores the wild and rugged coast of Cumbria and learns how central the county is to many of the challenges facing Britain. The Lake District National Park includes a beautiful stretch of Cumbria's coast, where rare Natterjack Toads inhabit a spectacular sand dune landscape.