Here's the info from the Disney Weddings website. I had my Engagement Photo's done at Epcot and we had such a great time that we will be doing another for our honeymoon (probably a different location this time though). Also, we got way more than our 20 photo's that it says but that may not be the case for everyone. And the photo album is beautiful!
Honeymoon / Engagement photographic session- $295
Includes:
* Guided tour of the Disney Theme Park of your choice to determine a photo location. (Includes Cinderella Castle at the Magic Kingdom park, Epcot's World Showcase, Tower of Terror at the Disney-MGM Studios, or The Tree of Life in Disney's Animal Kingdom Theme Park)
* Twenty (20) 4x6 prints
* A beautiful white leather-bound album
(These sessions will be scheduled from park opening until 11:00 a.m. Monday through Friday. Session does not include admission to the park. Casual attire and comfortable walking shoes are recommended.)
Also wanted to add that the park will be open to the public when you get the photo session done if you choose MK.