It's June 1, 1983 and you're invited to the Dedication Ceremony of the New Fantasyland! This "Cast Premiere" ticket implies it's for the official grand re-opening, but in reality this is at least the 2nd dedication ceremony since I have an identical ticket for May 26, 1983. I guess it's not practical to have all the cast members go on one night, who'd be working? Did they lower the draw-bridge for each ceremony?
The Spring 1983 Vacationland has a fun cover.
Since the new Fantasyland was not finished when this was published we get some awesome concept art!