20,000 Leagues Under the Sea: Submarine Voyage the cavern entrance simulating a surface storm, the Captain would order the submarine down into the depths as a precaution, and the guests enter the show building section of the attraction. Within minutes, the devastation such natural phenomenon can create was made clear with the ominous Graveyard Of Lost Ships, with shipwrecks from various centuries littering the sea bed, guarded by the silent, gliding figures of sharks. Leaving the destruction behind, the Nautilus would reach the North Pole, circumnavigating the Polar Ice Cap from below the surface, and narrowly avoiding large icebergs stabbing through the water. Venturing deeper, the Nautilus
Captain Nemo the time of "Twenty Thousand Leagues Under the Sea"'s publication, this was worth 4.6 billion francs, or $18.4 billion U.S. dollars in 2018. Nemo tells Professor Aronnax that his intention was to have his autobiography sealed in an unsinkable casket and thrown overboard by the last survivor of the "Nautilus"'s crew, in the hope that it would be washed up somewhere. Accordingly an unsinkable casket does wash up in "The Mysterious Island" (wherein is revealed Nemo's background story), containing tools, guns, navigation instruments, an atlas, books, blank paper, and even clothing. The crate is lashed to empty barrels, and the