Introduction to Gunan Gate: Gunan Gate is located on the north bank of Ronghu Lake in the urban area, also known as Rongshu Gate. According to records, Li Jing, a famous general of the Tang Dynasty, built a new city guard in Guilin after pacifying Lingnan in the fourth year of Wude (621). It is the south gate of Guilin's "Tangcheng". It dates back more than 1,300 years and is a key cultural relic protection unit in Guilin.