How deep is the water in the skylight of the karst green pond in Xiangqiao, Liuzhou, Guangxi?

The water in the skylight of the karst green pond in Xiangqiao, Liuzhou, Guangxi is 20 meters deep. The total area of ??Guangxi Xiangqiao Karst National Geopark is 139 square kilometers, and the core area is 39 square kilometers. Among them, the Qingtang skylight is 20 meters deep. The main geological and landform relics in the scenic area include more than 50 places such as Xiangqiaoyan Tiansheng Bridge, Xiangqiaoyan Canyon, Jiulong Cave, Xiangshui Stone Forest and Xiangshui Waterfall. They integrate strange rocks, secluded caves and beautiful water, and are of high scientific research value and tourist appreciation value.