Chaotian Rock Cave is located in Mazhiting, Guanjiazui Township, Qidong County, 42 kilometers away from the county seat. It is a limestone karst cave. Four Chinese characters reading "A Magnificent Paradise Facing the Sky" are carved above the cave entrance. The cave interior is spacious, measuring 7 meters in height, 10 meters in width and 30 meters in depth. Cool and pleasant in summer, it serves as an ideal summer retreat.

Outside the cave stand facing each other the Lion Ridges, presenting a grand and imposing spectacle. The site ranks among the county’s famous scenic spots.