Introduction to Dikai Gorge: Dikai Gorge is the fourth canyon of Tanzhang Gorge, with a total length of 6 kilometers. It is the gorge with the most water pools and the narrowest point in the canyon, with the narrowest point less than 2 meters. The relative height of the cliffs on both sides of the canyon is between 300-500 meters, so it is called the fissure gorge.