Abstract: The twin hull rowboat includes certain structural and functional components designed to provide a water craft which, when assembled, is compact, easily rowed, highly maneuverable and has the stability characteristics of a catamaran. When the water craft is disassembled it can be easily stored in any motor yacht, sailboat or transported on the top of a vehicle or inside of a van or station wagon. Each hull is elongated and of unitary construction made from a plastic material. The outer skin of the hull is made from a tough or strong plastic such as polyethylene which surrounds an inner core of solid polyurethane foam material. A flexible deck is stretched between the hulls upon which the operator sits to row the boat. The hulls are held in rowing or assembled position by two round spars which slide into receptacles or sleeves molded directly into the top surface at the bow and stern of each hull. The spars and supports carry the flexible fabric deck.