Ban Gioc–Detian Falls

Two waterfalls on the Quay Son River that cross the international boundary between China and Vietnam are known collectively as Ban Gioc - Detian Falls or Ban Gioc Falls. The waterfalls are about 169 miles or 272 kilometers north of Hanoi. The waterfall's crest has progressively eroded over thousands of years as it has steadily migrated upstream. Most of the time, it looks to be two waterfalls, but when the river is swollen from summer rains, it might once again look like one waterfall. The two parts are thác chính (Main waterfall) and thác phụ (Subordinate waterfall). The waterfall falls 30 meters (98 ft). Rocks and trees divide it into three falls, and the thunderous sound of the water crashing against the cliffs can be heard for miles around.

The original limestone bedrock layers are being eroded near the waterfalls, which are situated in a region with established karst formations. From subsurface fractures along the lower layers of the region, several streams emerge. The waterfalls' many dips from one layer of bedrock to another demonstrate the numerous depositions of sediments of varying hardness that built the topography over the course of millions of years. At a waterfall, there are two ways to go in different directions: portage along the river's path, and fording or rafting over the river. Rafts are being utilized to ferry visitors closer to the falls and back to their starting pier.

Location: Vietnam