The Whitewater River Run in Washington State is a popular destination for whitewater enthusiasts due to its scenic beauty and challenging rapids. The ideal streamflow range for this river is between 200 and 500 cubic feet per second (cfs), which offers a thrilling experience for rafters and kayakers. The run is rated as a Class III-IV, making it suitable for intermediate and advanced paddlers.

The river run covers a segment of approximately 12 miles, starting at the Headwaters and including all tributaries upstream from Graves Creek Road and confluence with Graves Creek to the confluence with Quinault River. The rapids and obstacles on this stretch of the river include Big Kahuna, a Class IV rapid with a large boulder in the middle, and Logjam, a Class III rapid with multiple logs in the water.

In terms of regulations, the use of motorized boats is prohibited on this section of the river, and all paddlers are required to wear a personal flotation device (PFD) at all times. Additionally, visitors must obtain a permit from the Olympic National Park Service before entering the river and are advised to practice Leave No Trace principles to minimize their impact on the environment.

Overall, the Whitewater River Run offers a challenging and exciting experience for whitewater paddlers, provided they take the necessary precautions and adhere to the regulations in place.