Buliu River was said in legend to be formed by the spring of alcohol from the mountains faraway. In Zhuang dialect, 'Bu' means spring, and 'Liu' means alcohol. Buliu River, starting from Mount Qianwan in Tianlin County, passes Lingyun, Leye and Tian'e County and flows into Hongshui River in Nongtan area. The whole river is 132 meters long and is also called Buliu River Gorge. It is part of the cave groups in Dashiwei. The numerous underground rivers inside the caves form a quiet overground river. Taking a raft down the stream, tourists can see the steep cliffs on both sides and dense woods. The woods cover over 90% of the forest. They are old and huge, with cirrus circling. In the forest, there are plenty of plants and species, some of which can only be seen in tropical rain forests. Buliu River is sheltered with green trees on each bank all year long. There, wild monkeys gather and play, the fish swim and shuttle and birds sing and speak. Therefore, the river is called "Kingdom of plants and heaven of birds" by experts. Over the Buliu River there is a natural stone arched bridge formed by three fallen mountains. The bridge, called "fairy bridge" by local people, is located a segment downstream in the driftage river. The fairy bridge is like a huge dragon that crosses in the river. The bridge is 145 meters in height, 78 meters in thickness, and 177 in span, with an arch bore of 67 meters tall. The bridge and river form unique scenery. The natural stone arched bridge is just rare and impressive. It is been called the biggest the most beautiful aquatic born bridge in the world by the expert. So the bridge is highly worthy of being visited.