Trail on the cliff

The Hapen Historic Trail, which crosses diagonally through Wulai District of New Taipei City and Datong Township of Yilan County, runs along the right bank of the upper reaches of Nanshi River and around the mountain.

The trail passes through the tributaries of Nanshi river several times, and arrives at Happen Camp, where Nanshi River and Hapen River converge. Continuing from the camp, the path began to climb up to the saddle between Mount Hongchai and Mount Zhongling. It then passes around the Zhongling police post, descends to the west saddle of Lunpishan, and finally connects to the industrial road.