The Whitewater River Run in Arizona is a thrilling adventure for whitewater enthusiasts. It begins 1 mile below the Redwall in both of the main arms and ends at the confluence with the Colorado River. The ideal streamflow range for this run is between 8,000 and 20,000 cubic feet per second (cfs), making it a Class III-IV rated run. The river run covers approximately 28 miles, and the segment mileage is from mile 180 to mile 152 on the Colorado River.

There are several specific river rapids and obstacles to navigate along the Whitewater River Run, including Grapevine, Tanner, Hance, and Crystal Rapids. Grapevine Rapid is a Class III rapid with waves that can reach up to 6 feet in height. Tanner Rapid is a Class IV rapid that contains a large hole that can be challenging to navigate. Hance Rapid is considered one of the most difficult rapids on the river, with a Class IV+ rating and a steep drop that requires precise navigation. Crystal Rapid is a Class III rapid that contains several large boulders that must be avoided.

To ensure the safety of all visitors, there are specific regulations in place for the Whitewater River Run. All visitors must have a permit to enter the area, and only motorized rafts or kayaks are allowed. Additionally, visitors must wear a personal flotation device (PFD) at all times while on the river. It is recommended that visitors have previous whitewater experience before attempting this run.

Overall, the Whitewater River Run in Arizona is an exciting adventure for experienced whitewater enthusiasts. With specific regulations in place and several challenging rapids to navigate, visitors must take appropriate safety precautions to ensure a safe and enjoyable experience.