Where is the joker card on the batboat chase?

In the "Batboat Chase" scene from the Batman animated series, the Joker card is typically found as a clue or a calling card left by the Joker. It symbolizes his playful yet dangerous nature, often appearing in the context of his schemes against Batman. The exact location of the card can vary depending on the specific episode or context within the chase. For precise details, it’s best to refer to the specific episode where this chase occurs.