The water and the fire emerge from the same place, which is also called the Water and Fire Cave, and Water and Fire River. It is a natural landscape, where fire and water coexist. In Wuyun Village, Dongshan Township, Yilan, there are many natural underground springs rich in natural gas, coming up through ground cracks. After being lit, it creates scenery of fire burning on water, a unique geological phenomenon, which shows fire within the water, and water within the fire.