The Whitewater River run is a popular rafting destination that spans approximately 18 miles in the state of Arizona. The ideal streamflow range for this run is between 200 and 500 cubic feet per second (cfs). The class rating for this run is a combination of Class III and Class IV rapids, with some technical sections that require significant maneuvering skills.

One of the most notable obstacles on the Whitewater River run is the notorious Upset Rapid, which is a Class IV rapid that requires careful navigation through narrow channels and large waves. Another challenging section of the run includes the Hance Rapid, which features steep drops and large boulders.

In terms of regulations, permits are required to raft on this section of the river, and all rafters must follow strict guidelines for safety and environmental protection. Additionally, there are restrictions on group sizes and camping locations along the river.

Overall, the Whitewater River run offers a thrilling and challenging adventure for experienced rafters, but it is important to pay close attention to the streamflow levels and regulations to ensure a safe and enjoyable trip.