The watercourse though the Huangniu Gorge zigzags like the intestine, and is full of interlaced submerged reefs. The river water swirls like the boiling water to make the sailing dangerous. “Morning set off in Huangniu, night anchor in Huangniu, 3 days and 3 nights are not enough for passing through Huangniu, days and nights, endless sailing drives hair grizzle.” An ancient ballad is the best description about the hard shipping condition in this part.