Introduction to the mysterious rainforest: The mountain range where Betel Nut Valley is located is connected to the Wuzhi Mountain, the first mountain in Hainan. It is called Ganshi Ridge. The altitude in the area is 360-500 meters, and the annual temperature is 23-27°C. It is tropical The monsoon climate area has abundant sunshine and rainfall. There are more than 1,400 kinds of trees and shrubs in the rainforest. Various vegetation, luxuriant branches and leaves, and spring all year round, so it is known as the "peerless rainforest".