Abstract: Disclosed is water craft providing inventive features to achieve a double-decked vessel having: a) substantially continuous, flat and open upper deck; b.) a substantially continuous and flat lower deck with an enclosed fore section and an exposed aft section forming a swim deck; and c.) a system of collapsible bulwarks in the upper and swim decks that permit the vessel to transition from a traditional configuration (better suited for travel) to an open configuration (better suited for entertainment activities while stationary).