Matt Baker explores the best of food, drink and farming on offer, Ellie Harrison meets an aspiring actress turned accidental cow artist, Adam Henson brings the farmyard to the showground, Tom Heap finds out how the forests of the Blenheim estate help the local community, and John Craven gets a unique glimpse into one of Blenheim Palace's greatest secrets.

Main image: Yellow buttercups growing at meadow in Yorkshire Dales national park/Getty