As you enter the forest road, there is a fence on one side that separates the road from a public cemetery. A vine of birthwort (Aristolochia) and Taiwan elder (Sambucus formosana) has been planted along the fence to induce various kinds of butterflies, including the precious golden birdwing (Troides aeacus), to lay their eggs on it.
走進林道，一旁的圍籬除了用來分隔公路與公墓，刻意栽種的馬兜鈴、沒骨消（七葉蓮），還吸引了多種蝴蝶產卵，包括珍貴的黃裳鳳蝶。