China Danxia Valley - nature's oxygen bar leisure water Mandanxia, intoxicated industrial civilization, fine pure honey, overnight mountain breeze. Danxia Valley Scenic Area is located in the northeast of Xishui County, with a forest coverage rate of 97% and negative oxygen ions up to 2982/cm3. It is the most extensive and best preserved native evergreen broad-leaved forest belt on the same latitude of the Earth. .