The Whitewater River run located in the Olympic National Forest of Washington is a popular destination for whitewater enthusiasts. The ideal streamflow range for this river run is between 500 and 3000 cfs. The river is rated as a class III-IV in difficulty, with some segments reaching up to class V during high water seasons.

The total segment mileage for the Whitewater River run is approximately 9.5 miles, with the run beginning at the headwaters of the river and including all tributaries until the confluence with Duckabush River. The river includes numerous rapids and obstacles such as "The Notch," "Charlie’s Drop," and "The Ledges."

Specific regulations for the area include the requirement of a permit to access the river run, which can be obtained through the Olympic National Forest website. Additionally, all participants must wear a personal flotation device and follow Leave No Trace principles while on the river.

Overall, the Whitewater River run offers a thrilling experience for experienced whitewater enthusiasts, but it is important to follow all regulations and safety precautions for a safe and enjoyable experience.