This is a difficult out and back trail to 6.5K in Basianshan National Forest Recreation Area.
This trail goes by 0.5K, 基隆山魔王挑戰路線登山口, 1.0K, 觀景台, 2.5K, 3.0K, 3.5K, 4.0K, 5.0K, 5.5K, 6.0K, 4.5K, 2.0K, and 1.5K.
★★★★★