To celebrate 65 years since Her Majesty's coronation, Countryfile, also celebrating its 30th anniversary, has been given unprecedented access to the Queen's Sandringham estate. Matt Baker discovers that the Queen's love of her most private rural hideaway comes through her father's side of the family. Adam Henson looks into the farming history of Sandringham which has run as a mixed farm of nearly 6000 acres for many years. Ellie Harrison is at the Royal Stud just half a mile from the main house. It was here that the young princess would accompany both her grandfather and father to spend time with the thoroughbreds. John Craven looks at the great flood of 1953 and meets the local people who were affected in the Sandringham area to hear their stories. Matt Baker also visits the Royal Pigeon Loft and discovers that the birds are a real passion of the Queen. Finally, Anita Rani learns about Her Majesty's love of gun dogs.