The Luxury Ocean Cruise Ship is a cruise ship that was 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 won free tickets to go on the luxury cruise ship. Meanwhile, Plankton saw that Mr. Krabs won the ticket for the cruise ship. Then, Plankton asks Karen to go on a honeymoon with him. But Karen did not know that Plankton tricked her because he wanted to steal the secret formula. At the end of the episode, it is split in half.