“Have a magical day out with a behind-the-scenes tour of the Harry Potter films at Warner Bros. Studio Tour London – The Making of Harry Potter. See first-hand the sets, costumes, and props used in all the Harry Potter films, and step inside some of the films’ locations including the Great Hall, Dumbledore’s office and Hagrid’s hut. It’s the ultimate Harry Potter experience”! Visit London Official Tour Guide.
The above sums up the day here and even if you are not Harry Potter fans its a fascinating insight