The Headwaters Section 2 of the Whitewater River Run in Arkansas, stretching from T2N, R18W to Forest Road 132C, is a popular destination for kayaking and canoeing enthusiasts. The ideal streamflow range for this section is between 300 and 1000 cubic feet per second (cfs), with 500 cfs being the optimal level for a thrilling run.

The segment mileage of this section is around 8 miles, with a class rating of II-III rapids, making it suitable for intermediate-level kayakers and rafters. The run includes several notable rapids such as "Widowmaker," "Big Drop," and "Twin Falls." Paddlers should be prepared to navigate through technical drops, boulder gardens, and narrow canyons.

As for regulations, all participants must have a valid Arkansas Game and Fish Commission fishing license, and life jackets are mandatory for all on the river. Additionally, camping is only allowed in designated areas, with a maximum stay of 14 days.

Overall, Headwaters Section 2 of the Whitewater River Run is a thrilling and challenging run that requires intermediate-level skills and proper safety gear. It's important to check the streamflow levels before embarking on this adventure, and to adhere to all regulations to ensure a safe and enjoyable experience.