The 630-foot-deep sinkhole discovered contains "ancient trees," reports a Chinese news agency.

A sinkhole was recently discovered by an exploration team in China's Guangxi Zhuang Autonomous Region, and it holds more discoveries than initially meets the eye. The 630-foot-deep, 1,004-foot-long, and 492-foot-wide sinkhole is home to "ancient trees" and "shade plants," states the Xinhua news agency.

A senior engineer with the Institute of Karst Geology of China Geological Survey, Zhang Yuanhai, told the Chinese news agency that the sinkhole is located near Ping'e village and contains three cave entrances and a "well-preserved primitive forest."

The exploration concluded on Friday, with the team rappelled into the sinkhole's bottom. The team then returned to the above-ground later on Friday evening.

"This is cool news," George Veni, the executive director of the National Cave and Karst Research Institute (NCKRI) in the U.S., told Live Science.

Large sinkholes in China are called "Tiankeng," or "heavenly pits," which is definitely how we would describe this newly discovered pit!

"Because of local differences in geology, climate, and other factors, the way karst appears at the surface can be dramatically different," Veni added. "So in China you have this incredibly visually spectacular karst with enormous sinkholes and giant cave entrances and so forth."

According to Newsweek, this marks as the 30th such sinkhole discovered in the Guangxi Zhuang Autonomous Region.

Check out some of these incredible images of the ancient forest hidden in the sinkhole below:

Main photo by chensiyuan, Courtesy of Commons Wikimedia