Pneumatic boulder stands on a steep cliff, with a height of 4.37 meters, a width of 44.47 meters, a length of 4.46 meters and a weight of about 200 tons. It looks like a peach tree with a sharp top and a round bottom. It stands on a rock, which lies on the ground and leans towards the sea. The contact surface between the two stones is only a dozen square centimeters. The wind blew and the boulder shook gently. If a person lies on his back on a rock with his feet hard, the boulder will shake, but it will not fall down. People standing under the pneumatic stone have a thrilling feeling, sighing as a wonder of the world, hence the name "pneumatic stone". The wind blows the stone a thousand times.

Huang Daozhou, Xie Chen and Chen Shiqi, three loyal ministers of Tongshan, were inscribed by Lu Zhenfei, the governor of Ming Dynasty, in the autumn of Wuzi (1648). On the right side of Panshi, there are four characters inscribed by Xiashan layman in Ming Dynasty, and on the left side, there is a stone tablet inscribed for Cheng Chaojing, the magistrate of Mingshui.

There is also a beautiful legend about wind-driven stones. During the Jiajing period of the Ming Dynasty, pirates invaded Dongshan Island in an attempt to snatch this strange pneumatic stone. They used several warships, put ropes on them and pulled with all their strength. However, the enemy only heard a few loud noises and all the ropes were broken. The enemy fell into the sea one after another, which was very embarrassing, but the wind-driven stone still stood. Celebrities in past dynasties have sung a lot about pneumatic stones. For example, Wen Sanjun's poem in Ming Dynasty said: Stone is a beautiful space, not a stone shaken by the wind. Yungen directly pagoda, the moon pavilion as small as eight Hong. Therefore, when tourists see this stone, they are always amazed. When they know its beauty, they will take pictures as soon as possible. The windbreak stone is in harmony with the surrounding scenery. No wonder the literati will leave their admiration for the unique scenery here.