Abstract: The invention comprises an improved system for raising, lowering and wet/dry storing of a craft supported thereon. This improvement includes pontoon means and structural frame means, respectively, for supporting said craft. The pontoon means and structural frame means are disposed for coactive movement one with respect to the other. The coactive operation of this system during the raising/lowering of the craft provides self-adjustability to the system. The amplitude of coactive movement of the pontoons/frame means can be limited so that the craft is not moved beyond its fully raised and lowered positions. This coactive movement and, more particularly, this limited coactive movement, is contrary to prior art boat lifts that include a fixed, immovable support framework in which only the craft lift is moved between respective raised and lowered positions.