The Yiskiana Trail follows the Tsengwen River upstream. Covered with gravel and old leaves, the trail isn't as smooth as the lumber roads that are often found in forest recreation areas, but it gives you a better feel for the teeming virgin forest. It is dark and damp under the forest canopy. Giant bird-nest ferns and wild orchids grow on the trees.
伊斯基安娜步道沿著曾文溪上游迤邐而行，雖然沒有許多森林遊樂區常見的平坦棧道，但走在落葉碎石舖出的森林小徑中，更能體驗茂密原始林的繽紛生命，陰濕環境中附生在樹上的巨大山蘇、野蘭觸目可見。