Dong Van Karst Plateau Quan Ba Twin Mountains: A majestic natural masterpiece of Ha Giang by Lam Pham July 2, 2024 by Lam Pham July 2, 2024 Quan Ba Twin Mountains is one of the names that are no longer too strange to backpacking enthusiasts when traveling to Ha Giang. This is one of the attractive places … 0 FacebookTwitterPinterestEmail