Sorry to double post, but I did some investigating and it apparently is involved with Great Adventure in some way.
From a site that reviews it when it was just a play and did not include music: "The play fizzles out after a final confrontation with a hippo in the road on the African Safari at Six Flags Great Adventure. Lindsay-Abaire gets us almost there, but stops short of any of the characters really confronting what's in the road right in front of them."
From a review of the musical: "Best yet is the closing number, “Great Adventure,” with its lyric advising, “So just enjoy the view, because no one gets a second time around.” Any musical ending as strong as this does is lucky, for sure."
Still not sure if they had to get permission to use the logo or since it's no longer used is considered fair game.