It is currently the 4th largest waterfall along a national border, after Iguazu Falls, Victoria Falls, and Niagara Falls and was one of the crossing points for China's army during the brief Sino-Vietnamese War. Read also Zhangjiajie Tours. Nearby there is the Tongling Gorge accessible only through a cavern from an adjoining gorge. Rediscovered only recently, it has many species of endemic plants, found only in the gorge, and in the past was used as a hideout by local bandits, whose treasure is occasionally still found in the cliff-side caves.
A road running along the top of the falls leads to a stone marker that demarcates the border between China and Vietnam in French and Chinese. Modern disputes arose as there are discrepancies as to the correlating legal documents on border demarcation and the placement of markers between the French and Qing administrations in the 19th century.
Disputes regarding the border demarcation at this location were settled in 1999 Viet Nam-China Treaty on Land Borderline. Additional talks were held as late as 2009 to clarify the treaty.However, there are controversies regarding the border demarcation around the Falls. One faction[who?] holds that the entirety of these falls belongs to Vietnam, and that the stone tablet had been moved there some time during or after the brief Sino-Vietnamese war of 1979. Read Nanning travel guide for more information. Also, these falls were not documented in any Chinese texts until recently.To the southeast, the land dispute also along the Sino-Vietnamese border also includes Nam Quan Gate (?i Nam Quan) which the Vietnamese claimed as well. Historically,Nam Quan Gate served as the border maker and entry point to Vietnam between Vietnam & China (hence there's also a Vietnamese historical saying,that Vietnam stretched from Cape Cà Mau to ?i Nam Quan).
Travel to China, do not miss the Yangtze River cruises.
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