The boat resembles a coffin and has candles lit on the edges that burn with green fire. The ship is only big enough for one person. In the center is a mast that resembles a large crucifix, similar to the sword Mihawk has, and a seat for himself.
This meager craft has no apparent significance, but Mihawk was able to sail the unforgiving seas of the Grand Line on it, which is a testament of his skills.
Not much is known about Mihawk's boat. It was first seen at the Baratie, which is not uncommon as the Baratie is close to the Grand Line.[1] Later in the anime, Mihawk is seen on the boat, looking at Monkey D. Luffy's and Roronoa Zoro's bounty posters, possibly in the Grand Line.[3] The current whereabouts of the boat is unknown.
↑ One Piece Manga and Anime - Vol. 6 Chapter 49 and Episode 23, Mihawk's boat first appearance.
↑ One Piece Yellow: Grand Elements - The Coffin Boat's name is revealed.
↑ One Piece Anime - Episode 151, Mihawk's boat appearance later in the series.