The Whitewater River Run from Headwaters to Confluence with South Fork Payette River in Idaho is a thrilling adventure for whitewater enthusiasts. The ideal streamflow range for this run is between 1,000 and 5,000 cfs, although it can be run at higher flows with appropriate experience and equipment. The class rating ranges from Class II to Class IV depending on the segment of the river.

The segment mileage for this run is approximately 18 miles, with several notable rapids and obstacles throughout the course. Notable rapids include Tongue, The Chute, and Hell's Half Mile. The river also features several large boulders and narrow channels that require skillful navigation.

It is important to note that this run is located within the Payette National Forest and is subject to specific regulations. These regulations include a permit requirement for commercial outfitters, a group size limit of 8 people per group, and a mandatory safety briefing before beginning the run. Additionally, all participants must wear a personal flotation device and follow Leave No Trace principles to protect the natural environment.