The Whitewater River Run in Hawaii is a challenging and exciting adventure for experienced watercraft enthusiasts. The ideal streamflow range for this river run is between 200-400 cubic feet per second (cfs), which provides optimal conditions for skilled kayakers and rafters. The class rating for this river run is Class IV, which means that the rapids and obstacles are difficult and require advanced paddling skills.

The segment mileage for this river run is approximately 3.5 miles, starting from the confluence of Pulena and Waiakeakua Streams and ending at the Pacific Ocean. The river rapids and obstacles on this run include tight chutes, steep drops, and large boulders, which require paddlers to navigate with precision and skill.

Specific regulations to the area include obtaining a permit from the Hawaii Department of Land and Natural Resources before entering the river. Additionally, all paddlers must wear appropriate safety gear, including helmets and life jackets, and follow Leave No Trace principles to protect the natural environment.