 The section between the Bright Angel Trail and the South Kaibab Trail (4.6 miles, 7.4 kilometres) is the most heavily travelled and the easiest to follow.Less traveled sections are subject to overgrowth by canyon flora early in the spring season, and may require route finding skills to traverse.All water sources along this trail must be treated, filtered, or boiled before drinking, with the exception of water available at the junction with the Bright Angel Trail (at Indian Garden).