a substantially circular watercraft has a buoyant , generally toroidal hull supporting a rigid deck with an outer periphery in substantial conformance with the perimeter of the hull . the deck has an opening located above the central opening of the hull to permit placement of power means to drive and steer the watercraft . the hull is made of a substantially rigid material and in a preferred embodiment the hull and deck are formed from a molded plastic . the leading edge of the watercraft is equipped with a “ carolina flare ” which provides greater ease of movement through the water .