Introduction to Yizitian: Yizitian is located at the foot of Wohu Peak in the North Mountain of Wuliangguan West Pavilion. Like "Yizitian", it is a crack in the rock caused by the crustal movement period. The crevice is 32 meters long, less than 1 meter wide, and more than 10 meters deep. The bottom is extremely steep and has 138 strips of stone steps. Standing in the crevice, looking up, you will see cliffs on both sides soaring in the sky, with a line of blue sky in the middle, which is a veritable "line of sky".