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The Whitewater River Run is a popular destination for kayakers and rafters in the state of Washington. The ideal streamflow range for this run is between 500 and 2,000 cubic feet per second (cfs). The river is rated as class III-IV, making it suitable for intermediate to advanced paddlers. The run covers a distance of approximately 20 miles, from its headwaters to the confluence with Agnes Creek.

The river features several notable rapids and obstacles, including the Slide, which is a steep drop with a large boulder at the bottom, and the S-Turn, which requires precise maneuvering through a series of tight turns. Other noteworthy rapids include the Pinball, the Drop, and the Railroad Rapid.

There are specific regulations and guidelines for the Whitewater River Run, which are intended to protect the safety of paddlers and the natural environment. These include a prohibition on camping within 200 feet of the river, a requirement for all paddlers to wear a personal flotation device, and restrictions on the use of motorized watercraft. Additionally, all paddlers are advised to check local weather and streamflow conditions before embarking on the run, as conditions can change rapidly and pose significant hazards.

Overall, the Whitewater River Run is a challenging and rewarding experience for experienced paddlers. It offers a variety of rapids and obstacles, as well as breathtaking scenery and opportunities for wildlife viewing. However, it is important to approach the run with caution and respect for the river and its natural surroundings.