We haven't done the one from CR - we've done the Y&BC one twice and the one from the Grand Floridian once. Its hard to know what goes on - my nine and ten year old went this year, but most of the kids are too young to give an accurate description - or a camera.
The plot is the same on them all - you go looking for treasure with peices of treasure map. Kids only. The get a bag of pirate junk and a bag lunch. They have a good time (my kids were way too old for it this year - they went for their cousin when was four and just barely old enough - and wasn't getting on that boat without them!)