One Piece Odyssee

Above the library, located in the attic-like section of the hut-like building in the stern of the Thousand Sunny, is the bath. From the ladder in the library, one enters a front washroom with an accessible toilet before passing through a door into the actual bath. It contains a much larger bathtub than there was on the Merry. In Nami's words, taking a bath there while the ship gently rocks has the feel of a high-end spa.