The Whitewater River run originates in the San Bernardino Mountains and flows into the Coachella Valley, eventually ending at the Pacific Ocean. The ideal streamflow range for boating is between 200 to 500 cubic feet per second (cfs). The river is rated as a Class III to IV, making it suitable for intermediate to advanced paddlers. The total segment mileage is approximately 30 miles.

The river has several notable rapids and obstacles, including "Drop Out," "S-Turn," and "Pinball." "Drop Out" is a Class IV rapid with a 10-foot drop, while "S-Turn" has a series of tight turns and requires precise maneuvering. "Pinball" is a Class III rapid that features a series of boulder obstacles that require expert navigation.

There are specific regulations in place for the Whitewater River run. All boaters are required to wear a personal flotation device (PFD) at all times, and boats must have a whistle and a throw rope. Additionally, there are designated launch and take-out areas along the river.

In summary, the Whitewater River run is a challenging and exciting adventure for intermediate to advanced paddlers. With its ideal streamflow range, Class III to IV rating, specific river rapids/obstacles, and regulations, the Whitewater River run offers a thrilling experience for those seeking a whitewater adventure.