The Batboat is the personal watercraft of Batman.
A darker version was used in the second film as The Bat Skiboat. Batman uses the vehicle near the climax of the film to travel through Gotham's sewer system towards the Penguin's lair.
A second Batboat appears in the third film ,piloted by Robin, and is quickly destroyed by The Riddler and Two-Face. In the same film, a version of the Batwing is shown to have a cockpit that can transform into a submersible vehicle should the air vehicle be shot down. The Batboat (a jet-powered cigarette boat) from Batman Forever fit within the film's H. R. Giger-inspired biomechanical theme.