Some embodiments of the present disclosure include a standup water slide allowing a user to slide lengthwise down the water slide on the user's feet. The standup waterslide may include at least one panel having a pair of flat edge portions and an arched hump positioned between the pair of flat edge portions. The arched hump may include a water shaft extending lengthwise therethrough, such that both the arched hump and the water shaft extend along a length of the panel; and the arched hump may also include a plurality of spray orifices extending from the water shaft to an external surface of the arched hump. In embodiments, as many panels as desired may be interconnected to create a slide of any desired length.