Introduction to mangroves and bamboo forests: There are hundreds of acres of mangroves preserved on the Dawan tidal flat of Shangchuan Island. It is also known as the "undersea forest". When the sea tide rises, only the crowns of the trees emerge from the water and dance, which is very interesting. . The bamboo and cylindrical trees on the sand embankment of Jintan Beach have high economic and ornamental value because of their beautiful shape and dark green branches and leaves. They can be used as garden greening and bonsai plants.