Longkou introduction: Longkou is not only the end of this long gorge, but also the most dangerous place in a long gorge. Because the river water cut down suddenly, the river bed suddenly converged, and the river water suddenly became furious, rolling back and forth like a giant python. The water is rough, the waves are roaring, and the water mist is rising. When the boat arrived at the mouth of the gorge, a huge boulder under the water suddenly raised the river bed and inserted it into the middle of the river with malicious intent.