I am Sir Charles,

Good Monday to you!
Our visitors centre is usually closed on Mondays for a bit of tidy-up after the weekend and all.
So sorry for the inconvenience.
I am sure they won't mind if you sneak in through the Resident's Entrance this one time only.  Just look like you belong there and nobody will bother you.
Thank you so much for passing by the neighborhood.
Enjoy your visit!

Our Visitor's center is open daily Tuesday thru Sunday.