In the Yanziyan scenic spot in Chishui, Guizhou, we are leisurely, through the collapsed Danxia rock seam, through the waterfall as the water hole of the curtain, along the steps, climbing on the cliff covered with ferns, moss and begonia flowers. "Fern plants / chewed along the red stone steps / all the way" think of Luo Fu's poem "Jinlong Temple", fern plants, ferns. Chishui is a fern paradise, the only tree fern, the national first-class protected plant, the green umbrella everywhere, the creek, the waterfall. Chishui is the natural kingdom of the waterfall kingdom in Chishui City. If there is only one waterfall, it is simply to be despised. There are two large waterfalls in the Yanziyan Scenic Area, one of which forms a water hole, the path passes through the inside of the waterfall, and the swallow passes over the waterfall like a black lightning.