《徐霞客游记·楚游日记十二》
然而它与宝珠并列着，未尝盛着珠子。由此往前，水深达五六尺，没有石梗，不可以进去了。
由此而前，水深五六尺，无埂，不可涉矣。
However, it is placed next to the treasure pearl and does not hold any pearls. From here on, the water is five or six feet deep and there is no stone bar, so it is impossible to go further.