One of a variety of Disney attractions that have been based on Jules Verne's 20,000 Leagues Under the Sea, this is the last one to employ a submarine-style ride system. Guests travel around a number of scenes that depict action from the book, as well as the Disney movie that was based on it. This includes a stunning set-piece in which an enormous squid attacks riders, as well as a visit to the lost city of Atlantis.

Guests are able to participate in the action, using joysticks to control a searchlight that highlights some of the strange inhabitants of the underwater world.