Crikes! HooRoo Run rafters experience a sense of weightlessness as they soar down this 6-story, 250-foot, triple-drop water ride. The 7-foot-wide flume takes four riders at a time on a straight shot down -- three times! While the popular Australian term “G’day” means hello, its counterpart “Hooroo” means quite the opposite. Riders must be at least 42 inches tall (1.07m).