Introduction to Tongtian Gorge: The seam of Tongtian Gorge is more than 100 meters high, with a drop of 132 meters between the highest point and the lowest point. It is only 0.8 meters wide and 318 meters long. The left wall is slightly bent and the right wall is slightly raised. The two arms are holding each other, advancing and retreating. One is hugging the arm, and the other seems to be refusing to welcome. It has the beauty of nature and the harmony of earth. Look up; the blue sky forms a line and cross it; you can climb to the sky without fear, it is known as the best gorge in the world!