The East Branch South Fork of the Whitewater River in California is a popular destination for kayakers and rafters. The ideal streamflow range for this river is between 200 and 800 cfs. The class rating for this river ranges from Class III+ to IV, making it a challenging run for experienced paddlers. The segment mileage for this river is approximately 6.5 miles. There are several notable rapids and obstacles along the way, including the Boxcar, Pinball, and the Narrows.

It is important to note that there are specific regulations to the area. The river is managed by the Bureau of Land Management and a permit is required to run the river. Additionally, there are restrictions on group size and camping within the area. It is also important to practice Leave No Trace principles and respect the natural environment.