Hi!
It's been a year since the last time I went, so I don't remember the cost but it is soooo fun! Your DD will love it. The room is decorated so that part of it looks like the sitting room of a nice English house. The other half looks like you're sitting out in a garden. They serve tea, coffee, milk etc.., Mickey shaped scones, soup, finger sandwiches and cookies. The food is fairly small but very good. Mary Poppins comes out and sings Supercali..... and Spoon Full of Sugar..possibly one more song. She walks around and interacts with everyone (many photo opps). Each family is brought up to the front where they put on hats, boas etc... and they will take a family photo with Mary, with your camera.
We have done this twice (2 different Mary's ~ both amazing!)
Have fun!!