Bamboo forest introduction: Cai Lun Bamboo Sea has "three unique features": first, the 28-meter-high natural fountain on the river beach, which broke the Guinness World Record; second, the world-famous Shangbao Crystal Mine, which produces mineral specimens, and the National Mineral Museum It has collected more than 20 mineral specimens; thirdly, the scenic spot contains the most complete flat-bodied fish fossil discovered in my country after Changxing, Zhejiang, which is about 250 million years old. It is the first discovery in Hunan Province and is of great scientific research value.