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The Whitewater River run in Washington state is a challenging and exciting river for experienced kayakers and rafters. The ideal streamflow range for this river is 1,000 to 5,000 cfs. The Whitewater River is rated Class III-IV, with some Class V rapids, and has a total segment mileage of approximately 14 miles.

There are several notable rapids and obstacles on this stretch of river. The first rapid, called Entrance Rapid, is a Class IV rapid that requires precise maneuvering and quick reactions. Another challenging section is called Meatgrinder, which is a narrow channel that requires careful navigation through a series of rocks.

The Whitewater River run is subject to specific regulations. The use of motorized vehicles, such as jet boats, is prohibited on this section of river. Additionally, all boaters are required to wear personal flotation devices at all times while on the water. It is also important to note that the road to the put-in for this run is closed during the winter months.