Introduction to Big Tukang: There is a large platform of 3,500 square meters on the stone cliff on the east side of Longwan Gorge, commonly known as Big Tukang. This was originally a place where ancient people prayed for rain and worshiped. Literati in the past dynasties wrote many inscriptions and poems. Xu Xiake once wrote a poem here, "The dragon can make the rain of vicissitudes, leaving a dragon bay to bathe together."