The Whitewater River Run from the Western Boundary Line of Section 34 to Redfish Lake in Idaho offers a thrilling adventure to kayakers and rafters. The ideal streamflow range for this run is between 1,000 and 5,000 cfs. The class rating of the river ranges from II to IV, with some sections having challenging rapids, such as the Pinball Rapid, the S-Turn Rapid, and the Lunch Counter Rapid. The segment mileage of this run is approximately 12 miles.

The Pinball Rapid is a challenging section of the river that requires skillful maneuvering of boats through a tight channel with several rocks and boulders. The S-Turn Rapid is another challenging section that requires quick decision-making and precise maneuvering. The Lunch Counter Rapid is the most significant rapid on the Whitewater River Run, which is known for its massive waves that can reach up to 20 feet high.

The specific regulations to the area include the use of personal flotation devices (PFDs) for all boaters, and a permit is required to access the area. Additionally, the use of alcohol and drugs is strictly prohibited on the river. The local authorities enforce these regulations to ensure the safety of the visitors and preserve the natural environment.

In conclusion, the Whitewater River Run from the Western Boundary Line of Section 34 to Redfish Lake offers an exhilarating experience to kayakers and rafters. With appropriate knowledge of the ideal streamflow range, class rating, segment mileage, specific river rapids/obstacles, and specific regulations to the area, visitors can enjoy the adventure safely and responsibly.