《徐霞客游记·粤西游日记四》
很久，仍旧往西走进省春岩的东洞内，钻入中洞，又从它的西侧钻入西洞。
久之，仍西行入省春东洞内，穿入中洞，又从其西腋穿入西洞。
After a long time, I still walked west and entered the eastern cave of Shengchunyan, then through the middle cave, and entered the western cave from its west side.