A boat booty has a closed bottom and an open top for the removable receipt of a boat hull. A rope encompasses the boat booty. Retaining strips secure the rope in operating position adjacent to the open top. A coupling assembly includes a plurality of lines. Each line has a fixed end coupled to the rope. Each line has a free end adapted to be releasably coupled to a cleat. An evacuation assembly includes a flexible tube. The flexible tube is coupled with respect to the boat booty. In this manner water is removed from the space between the boat and the boat booty while a user pulls on the lines to raise the upper edge of the boat booty.