The Ngwempisi River, located in Mpumalanga, South Africa, is a significant whitewater destination. The primary paddling route is a 34-kilometer stretch through a gorge, characterized as fairly continuous whitewater. The technical difficulty is graded as 4 with a few grade 5 rapids, indicating a challenging and advanced-level run suitable for experienced kayakers. Completing this section typically requires a full day, with a duration of five to eight hours. Access to the put-in is via a dirt road, though the specific location is not detailed. The river flows through a dramatic landscape, passing steep ridges and forested valleys. The surrounding environment is described as pristine, and the trail along the river offers views of local homesteads, suggesting a blend of natural and cultural scenery. The experience is defined by its continuous, technical rapids set within a rugged and scenic gorge environment.