《徐霞客游记·滇游日记十》
又往南穿过山坞，走半里后上坡，路断了却不知道云涛洞在哪里。
又南涉坞，半里登坡，路绝而不知洞所在。
We passed through the ravine to the south and went uphill for half a mile, but the road was closed and we did not know where Yuntaodong was.