Nanyanfeng is the main peak of Dawang Mountain in the Qifeng Mountain System, at an altitude of 862.7 meters, so it is known as "Huangshi's first peak". Nanyanfeng was originally called Longyan Peak and Longyan Peak. It is said that Longjiao Mountain in the direction of Daye is collectively known as Longshan. Nanyan Peak is the eye of dragon, and Longjiao Mountain is the corner of dragon. In ancient times, it was located in the south of its Fuzhi (now the Yangye area of Zhangzhou), so it was called the Nanyan Peak. The peak was steep and steep, and the cliffs were like a knife and ax; clouds and mist surrounded it. The geological features of karst are: the surface is stone bud, solvary, stone forest, funnel, tiankeng, water cave, dissolved depression, slope valley, blind valley, peak forest and other landforms. Underground, there are various cave systems such as caves, underground rivers, and caves in stalagmites, stalagmites, stone pillars, stone waterfalls, etc.