Introduction to the Sujia Tiankeng: It is easy to enter the bottom of the Sujia Tiankeng. In the past, corn and other dry food crops were planted. There are almost no big trees at the bottom of the Tiankeng, but the surrounding small trees and shrubs are closed and the ornamental value is relatively weak. , only the two herbaceous plants, Lily and Aesculus, reflect their potential value.