The Whitewater River run in Washington State spans 32 miles from the Lake Chelan-Sawtooth Wilderness Boundary to the Okanogan National Forest Boundary. The ideal streamflow range for this run is between 500-2500 cfs. The class rating ranges from II to IV, with the rapids increasing in difficulty as the river progresses. Some specific rapids and obstacles include the Class III+ Double Drop, the Class IV Boulder Garden, and the Class IV+ Meatgrinder.

To protect the natural beauty and recreational opportunities of the area, specific regulations have been put in place. These include a day-use permit system and a limit of 12 people per group. It is also important to note that the use of glass and Styrofoam containers is prohibited on the river.

Overall, the Whitewater River run offers a thrilling adventure for experienced kayakers and rafters. However, it is important to be aware of the changing water levels and potential hazards on the river. It is recommended to consult with local outfitters and guides before attempting this run.