Tham Ma Pass Tours

Tham Ma Pass (Greatly steep Code, Dốc Thẩm Mã or Tham Ma slope) is a mountain pass/road in Ha Giang province (Dong Van District, Lung Thau). Dong Van District and its Dong Van Karst Plateau Geopark offers a number of great mountain passes and paths and this is one of them. If you drive from Ha Giang town to Dong Van north along QL4C you can not miss it because it is a part of this road.