《徐霞客游记·滇游日记二十》
过了很久，仍然上到洞口，于是登前楼，前面楹柱后面轩廊，位置都很完备，但僧人外出，没有留下门钥匙。
久之，仍上洞口，始登前楼，则前楹后轩，位置俱备，而僧人他出，扃钥不施。
After a long time, he finally reached the entrance of the cave, then went up the front building, the porch behind the front pillars, the location is very complete, but the monk went out and did not leave the door key.