The Vientiane Cave Tourist Scenic Area is located on the mountainside of the south bank of Bailongjiang, Hanwang Town, Wudu District, Weinan City. It is the largest natural cave found in the northwest of China, with the most beautiful scenery and the highest artistic value. Vientiane Cave can be compared with the world-famous Guilin Reed Flute Rock, Zhaoqing Seven Star Rock, both the Xiongqi and the South, is one of the four famous caves in China.