The Yinu Falls is located in Xinyi Township, Nantou County, with an altitude of about 1,750 meters. It is about 6.3 kilometers from the Dongpu Mountain entrance to the falls. The roads are often collapsed, so you can choose to go the detour route behind Lele Mountain Hut. The Yinu Falls is about 4 kilometers away from Duiguan police post.
The formation of Yinu Falls is due to the different degrees of resistance to weathering of each geological and lithological property, resulting in differential erosions. Similar to Yunlong Falls that hangs off the cliff wall, the Yinu falls is divided into several sections and winds down into Chenyoulan River. Yinu, or Otome in Japanese means girl in Japanese. It was given this name because the water falls gently and gracefully like a girl.

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