The Whitewater River Run in California is a popular destination for kayakers and rafters seeking a thrilling adventure on the water. The East Branch Nelson Creek Headwaters to Confluence with Nelson Creek segment is approximately 12 miles long and has a class rating of III/IV. The ideal streamflow range for this segment is between 400-800 cubic feet per second (cfs), but it can be run up to 1,200 cfs.

The Whitewater River Run has several notable rapids and obstacles. One of the most challenging is the "S-Turn" rapid, which requires precise maneuvering to navigate through the narrow channel. Another notable rapid is "Headquarters," which features a large boulder in the middle of the river that creates a significant drop.

To ensure the safety of all visitors, the California Department of Parks and Recreation has established specific regulations for the area. All visitors must wear a personal flotation device (PFD) at all times while on the water. Additionally, there are restrictions on the use of alcohol and drugs while on the river.

In summary, the Whitewater River Run in California offers an exciting adventure for experienced kayakers and rafters. With a class rating of III/IV and several challenging rapids, visitors should be prepared for a thrilling ride. It is important to follow all regulations and safety guidelines to ensure a safe and enjoyable experience on the water.