The Whitewater River run in California is a popular destination for whitewater rafting and kayaking enthusiasts. The ideal streamflow range for this river is between 500-1500 cfs. The river is divided into three segments: upper, middle and lower.

The upper segment is a class IV-V section that runs for 9 miles from the headwaters in Section 17, T4S, R1E, to the Whitewater Preserve. It features steep drops and technical rapids such as "Bitch Slap" and "Pinball." The middle segment is a class III-IV section that runs for 7 miles from the preserve to White Water Village. It features fun and challenging rapids such as "The Maze" and "Jump Off."

The lower segment is a class II-III section that runs for 13 miles from White Water Village to the Pacific Ocean. It features beautiful scenery and milder rapids such as "Boulder Garden" and "The Narrows." Specific regulations to the area require all boaters to wear a personal flotation device (PFD) and to pack out all trash.

Overall, the Whitewater River run provides a diverse range of rapids and scenery for all skill levels. It is important to note that water levels can change quickly, so it is essential to check current flow conditions before embarking on any trip.