Disney kept their cruise audience in mind when they made the AquaDuck. ; One must be 48" tall to ride it and it has it's thrills to start and around a dark tunnel as you go around the forward stacks. ; I think you are right as it's more of a thrill to see around the ship as you go. ; The tubes do go at a good clip. ; I saw many repeat riders and their was a buzz on the ship about it. ; Good indications but do not expect anything close to a water park's slide experience.