The Luxury Ocean Cruise Ship is a cruise ship that is only seen in the episode "Walking the Plankton."
The Luxury Ocean Cruise Ship resembles the Titanic, and mostly is grey in color. It has many rooms where the guests can relax, including a large pool with a water slide in the main deck area. Umbrellas and a flight of stairs fill the pool deck.
In "Walking the Plankton," SpongeBob and Mr. Krabs win free tickets to go on the luxury cruise ship. Meanwhile, Plankton notices that Mr. Krabs wins the ticket for the cruise ship. Then, Plankton asks Karen to go on a honeymoon with him. Karen replies with a "yes," but does not know that Plankton had tricked her into him wanting to steal the secret formula. At the end of the episode, the ship is split in half.