The large green ship is a vehicle that can be found in the Bikini Bottom Museum of Boating. It only appears in the episode "Nautical Novice."
It is a green ship with eight masts and has a crow's nest and a captain's brig.
Role in episode
gives a tour to her class at the Bikini Bottom Boat Museum and tells them about it before the students get on top of the ship. SpongeBob
looks through a telescope on it.