《徐霞客游记·滇游日记二十六》
从石块南边下坠到坑中一丈多，这个深坑南北横处有二丈，东西宽八尺，它下边再往下深嵌，就见有水流贯在峡底，千万条小鱼，杂乱地游在水中。
从石南坠坑下丈余，其坑南北横二丈，东西阔八尺，其下再嵌而下，则水贯峡底，小鱼千万头，杂沓于内。
From the south side of the stone block, I descended into the pit for more than one zhang. This deep pit was two zhang wide north to south, and eight chi wide east to west. It sank deeper below, and I saw a stream flowing in the bottom of the canyon. Thousands and tens of thousands of small fish were swimming in the water in a messy way.