《徐霞客游记·黔游日记七》
听到水声哗哗响十分湍急，忽然见到一个山洞悬在北边山崖之下，洞口向南而且非常高，溪水自南流来，向北流入洞中，平淌在洞里，深仅数寸，可宽处约二丈。
闻水声淙淙甚急，忽见一洞悬北崖之下，其门南向而甚高，溪水自南来，北向入涧，平铺洞间，深仅数寸，而阔约二丈。
I heard the sound of water rushing and it was very turbulent. Suddenly I saw a cave hanging under the cliff on the north side. The entrance of the cave faced south and was very high. The stream flowed from the south and into the cave from the north. It was flat in the cave and only a few inches deep, but it was about two feet wide.