The Whitewater River Run is a popular destination for kayakers and rafters in the state of Washington. The headwaters of the river start in the Cascade Mountains and include all tributaries that flow into the Whitewater River until it reaches the confluence with North Fork Bridge Creek. The ideal streamflow range for the Whitewater River Run is between 500-1500 cfs, providing a thrilling ride for intermediate and advanced paddlers.

The river is rated as class III-IV, with some sections reaching class V during high water. The segment mileage of the river run is approximately 7 miles, starting at the put-in at Buck Creek Campground and ending at the take-out at the North Fork Bridge Creek confluence. Paddlers will encounter several notable rapids and obstacles, including "The Notch," "Double Drop," and "Surprise Rapid."

To ensure the safety of all paddlers, there are specific regulations that must be followed when accessing the river. A valid Washington State Discover Pass is required to park at the Buck Creek Campground and access the put-in. Additionally, paddlers should be aware of private property boundaries, as there are sections of the river that flow through private land.

Overall, the Whitewater River Run is a thrilling adventure for experienced paddlers seeking a challenge in the beautiful Washington wilderness.