Baxiandun is located in the south of Laoshan Mountain. It is a cliff composed of blue, yellow, green, gray, black, red and other colored sandstones. There are more than 10 stone piers under it. The wind is high and the waves are high, and it is a spectacle of Haitianshanyan. It is named "Haiqiao Xiandun" in the twelve scenic spots of Laoshan.