A participatory water slide play apparatus is disclosed upon which a ride participant can slide from an upper portion to a lower portion. Sensor/actuator devices are positioned on or adjacent the slide at locations intermediate the upper and lower portions thereof and are linked to associated play elements, such as water forming elements, noise making devices, scoring devices, and the like. While traveling down the slide, the ride participant is able to actuate one or more of the sensor/actuator devices to trigger one or more associated play elements and/or effects. Thus, aside from the enjoyment of the ride itself, ride participants can bring about desired effects and/or actively participate or interact with other ride participants located on or around the slide play structure in a fun and exciting manner.