We used it one night in 2001, our boys were 10 and 11 at that time. The price at that time included dinner at the Dolphin Fountain, now I think they take them to Tubbi's. It also included tokens for the arcade (not sure how many.)
When we used Camp Dolphin, we didn't go anywhere special, we just needed some time for ourselves! We went over to Epcot and enjoyed a nice quiet few hours just walking around being a couple!