The Whitewater River run from Confluence with Granite Creek to Confluence with Pine Creek in Idaho is a thrilling adventure for experienced kayakers and rafters. The ideal streamflow range is between 1500-5000 cfs. This run is rated as Class III-IV, which means it is suitable for intermediate to advanced paddlers. The segment mileage is approximately 9 miles.

The river rapids and obstacles on this run include Granite Creek Rapid, Triple Drop, Popcorn Alley, and Pine Creek Rapid. Granite Creek Rapid is the first significant obstacle on the run, featuring a sharp left turn with a large hole and a rock wall. Triple Drop is a series of three drops with a tight slot and a sharp right turn. Popcorn Alley is a series of small ledges with fun surf waves. Pine Creek Rapid is the most challenging obstacle on the run, featuring a steep drop with several holes and a big wave train.

There are specific regulations for this area that include wearing a personal flotation device at all times and observing a minimum group size of two people. It is also important to respect private property and avoid trespassing. Lastly, it is essential to pack out all trash and leave the area cleaner than you found it.