Just adjacent to Lang Cave is Deer Cave. Used to be the largest cave passage in the world before Hang Dong Soon in Vietnam was discovered in 2009. Though facts are still being disputed at this time, Deer Cave is still ostentatious due to its massive size. Deer Cave extends 2 kilometers in length. The southern passage rises 125 meters high passage and has a width of 169 meters. The partially lit entrance chamber is 146 meters high. Capacious enough for 40 Boeing 747 aircraft to fit in. Just the thought of it is mind-blowing enough.
