Exciting news from Tainxing, China – 983 meters deep!
While we were in China last week on our SW Karst geology/hydrology tour, it is my understanding that a group of largely British cavers connected Lanmu Shu Dong to Qikeng Dong. Lanmu Shu Dong had been connected to Liuchi Aokou Xia Dong last year. This forms a 19,024m long system which is 983m deep ending at Qikeng's terminal sump.
I am sure there will be a lot more to follow as the official announcements are released. Congratulations to all involved!
DirtDoc