Plunge pool height of fall, the volume of water, the resistance of the rock below the pool and other factors. The impacting and swirling water, sometimes carrying rocks within it, abrades the riverbed into a basin, which often features rough and irregular sides. Plunge pools can remain long after the waterfall has ceased flow or the stream has been diverted. Several examples of former plunge pools exist at Dry Falls in the Channeled Scablands of eastern Washington. Plunge pools are fluvial features of erosion which occur in the youthful stage of river development, characterized by steeper gradients and faster water flows. Where
Shoot the Chute to the loading platform—completing a closed circuit track. Most modern Shoot the Chute rides usually consist of (though not limited to) an oval shaped layout or a figure-eight layout. Many Shoot the Chute installations also have an observation platform or bridge so that spectators, in addition to riders, can get wet from the splash created by the boats. Intamin took the Shoot the Chute concept to extremes with the opening of its first Mega Splash, Perilous Plunge at Knott's Berry Farm. At its opening, it was the tallest and steepest water flume ride in the world. Three seven-ton 24-passenger boats