With a difficulty level of grade 4-5 (on a scale of 1 to 6), this river is ideal for experienced and professional rafters. It hosts the annual international event, The Asahan Whitewater Festival, which has been held since 2000. The festival features kayaking and rafting championships participated in by athletes from around the world. Operator: Sumatera Eco Venture Phone: +62-61-7955370
