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 Designed and built by Intamin and dubbed a Hyper Splash, it was, at its opening, the world's tallest water ride, with a top speed of . Pilgrims Plunge features a 135 open elevator lift leading to a drop at a 45' angle which will propel the boat to speeds approaching . Pilgrim's Plunge opened for the 2009 season, and was featured on a segment of the Travel Channel's Extreme series. It was renamed "Giraffica" for the 2013 season, and removed in April 2014 due to downtime and reliability issues. Shoot the Chute Shoot the Chute is an amusement ride consisting