The Whitewater River Run from the base of the Redwall to the confluence with the Colorado River in Arizona is a popular adventure for rafting enthusiasts. The ideal streamflow for the run is between 8,000 and 25,000 cfs. The class rating for this section of the river ranges from Class II to Class IV. The segment mileage is approximately 14 miles.

There are several notable rapids and obstacles on this run, including Hance Rapid, Sockdolager Rapid, Grapevine Rapid, and Horn Creek Rapid. Hance Rapid is the most challenging rapid on the run and is rated as a Class IV rapid. It features a large hole in the middle of the rapid that can be dangerous for inexperienced rafters.

There are specific regulations for rafting on the Whitewater River Run. All river runners must obtain a permit from the National Park Service before embarking on the trip. The permit system is designed to limit the number of rafters on the river and to ensure that the environment is protected. Additionally, all river runners must comply with the Leave No Trace principles and pack out all trash.

Overall, the Whitewater River Run is a challenging and exciting adventure for experienced rafters. It is important to plan and prepare for the trip and to comply with all regulations to ensure a safe and enjoyable experience.