《徐霞客游记·粤西游日记三十三》
再从深窟中探索它的西北方，穿过侧边向上钻出去，又找到一个洞口，平滑整齐，明亮开阔。
更从奥窟披其西北，穿腋上透，又得一门，平整明拓。
Then I drilled through the side of the deep cave and found another cave entrance to the north west, which was flat, tidy, bright and spacious.