Screened off from strong west winds by tall bamboo, watered by southern showers and lacking the sulfur deposits of Ch'ihsingshan, Tatunshan is richer in flora and fauna.
大屯山頂也是這條線上最重要的旅遊據點。此線不以「點」為號召，而以沿途風光取勝﹘ ﹘大屯山沒有硫氣孔，土質比七星山佳，西部有竹子山為屏障，強風難進，加上西南氣流帶來的豐沛雨水，動植物生長繁茂。