The 1191-hectare Neidong National Forest Recreational Area ranges from 230 to 800 meters above sea level. This area is surrounded by waterfalls, streams and forests.

Nanshih Creek is deep and wide with clear water and numerous stones on its river bank. There is a pleasant Sand Creek Fall near the entrance of Neidong. Neidong Creek is narrow, and rapidly flowing water cuts the valley into a steep ravine.

External link : http://www1.forest.gov.tw/RA_En_JP/0200002/RA_EN-01.htm