Introduction to Ruhua Cave: Ruhua Cave was first known as Maogou Cave. Ruhua Cave is 157.5 meters deep and has a height difference of 30 meters. Big holes are nested within small holes, and main holes are nested within forked holes. They are twisted and crisscrossed. The cave is winding, deep and full of strange lights, with overhanging breasts, stone pillars and stalagmites of various shapes.