A watercraft, specifically a barge, belonged to Hutt Bokku and was piloted by the nav droid designated Gak-Sixtoo. As part of Vader's quest to locate the carbonite-encased smuggler Han Solo, Bokku utilized this barge to move the Sith Lord Darth Vader to Zee-Nine City Seven, which was located far inside of Hutt Space. Following Vader's defeat of the assassin droid known as IG-88 inside the city, Bokku commanded Gak-Sixtoo to initiate an aerial bombard targeting the Sith Lord; however, Vader endured this attack, using his lightsaber to redirect the incoming fire. Recognizing the futility of defeating Vader, Bokku, despite his earlier treachery, brought the barge down to the surface, thereby enabling Vader to embark.