Kau limestone cave is located in the lake area, was originally formed by the limestone dissolution of the funnel, after the underground karst water due to the continuous supply a lake.

• 蛟湖位处石灰岩溶洞地带，原是受石灰岩溶蚀作用而成的漏斗，后由于地下岩溶水源的不断补给形成湖泊。