I was also 5 my first trip to DL, summer of 1972. I remember with great clarity thinking that the ghost sitting with me on the HM ride was real. I also remember going on the Mule ride and thinking there was a pretty good change I was going to fall down the side of what I remember as a mountain, but I enjoyed every second of that attraction anyway! And I remember the Submarine ride and the Electric Light Parade (so magical!). That's about all my brain cells could hang onto I guess. Strangely, I don't remember a single character from the park walking about like you see today.