The sinkhole, situated in Leye County inside the Guangxi Zhuang Autonomous Area, was found by spelunkers.
The opening has its personal forest residing inside it.
Chen Lixin led a cave expedition workforce contained in the pit on Could 6.
The sinkhole's inside is 306 metres lengthy and 150 metres vast. Speleologists additionally discovered three cave entrances within the chasm and historical bushes 40 metres tall.
Animals we thought have been extinct however weren't
"I would not be shocked to know that there are species present in these caves which have by no means been reported or described by science till now," Lixin advised Dwell Science.
The most recent discovery brings the variety of sinkholes in Leye County to 30, in line with Xinhua information company.