《徐霞客游记·粤西游日记四》
由弹丸山西南走过各老桥，望见山崖顶端有个洞高悬弯隆，上下都极其峻峭陡削，以为就是栖霞洞的洞口了。
由其西南渡各老桥，以各乡之老所建，故以为名。望崖巅有洞高悬穹，上下俱极峭削，以为即栖霞洞口也。
Passing by the various old bridges to the south-west of Danwanshan, at the top of the cliff a cave is visible, looming high and precipitous, both above and below. This is presumed to be the entrance to Qixiandong.