Abstract: A water slide system for easily converting a conventional backyard slide into a water slide. The inventive device includes an upper sheet formed to fit within the backyard slide, a pair of securing straps secured to the upper sheet for securing to the backyard slide, a pair of water tubes having a plurality of nozzles secured to opposing edges of the upper sheet for dispensing water upon the upper sheet, a transition member having a downwardly angled side, and a lower sheet. The lower portion of the upper sheet is securable to the transition member by a plurality of lengths of fasteners such as hook and loop fasteners. A plurality of gripping members are also provided for being secured to the steps of the ladder for preventing an individual from slipping within the wet environment. A plurality of securing loops are attached to the transition member and the lower sheet for receiving a plurality of stakes that are engageable within the ground surface.