It is located at around 500 km ( 310 mi ) south of HÃ Ná '' i ( Hanoi ) , 260 km ( 160 mi ) north of Ä Ã Ná ng ( Danang ) , 1,200 km ( 750 mi ) north of Há '' `` ChÃ Minh City ( Saigon ) . It is located at around 500 km ( 310 mi ) south of HÃ Ná '' i ( Hanoi ) , 260 km ( 160 mi ) north of Ä Ã Ná ng , 1,200 km ( 750 mi ) north of Há '' `` ChÃ Minh City ( Saigon ) .