There is a famous hydrospace atmosphere in the Bamboo Sea. The calabash-shaped inclining valley stands between the Stone Drum Mountain and Stone Gong Mountain in the Wanli Village in the eastern part. These two mountains stand facing each other and the valley is high and steep. A waterfall, which is about 200 meters high and four meters wide, jumps out from the cliff. The sunlight is reflected from the steam forming colorful rings of light. So this waterfall is also called the 'Varicolored Waterfall'. It is high and magnificent, facing the mouth of the deep valley. Around afternoon on fine days, the waterfall is kaleidoscopic under the strong sunshine. It is just like a rainbow, rising slowly from the valley.