Because the altitude here jumps suddenly from 100 to 600 meters, the sea winds blow directly in from the mouth of the Ta-an River, making for a great variation in temperature from morning to night, and mid-altitude plants also grow here.
由於地勢在此從海拔一百公尺突然拔高到六百公尺，海風從大安溪口直趨而入，造成火炎山系早晚溫差大，中高海拔的植物也在此存活。