A new day will cover a winding pass in Lung Thau commune to Pho Cat, situated on Highway 4C. Pho Cat is well-known for unique fairs where the local culture is painted obviously through trading and exchanging activities. Joining those fairs, you will be sunk in the rich brocades and special foods. The next attraction is a unique architectural design named Vuong Palace (Cat King Mansion), built nearly 100 years old by King Vuong Chau Duc. The entire Cat King Mansion, covering an area of 3,000 m2, began construction in 1898, completed after nine years in 1907.
From the Cat King Mansion, you go ahead to the Lung Cu flag pole. Tourists will go straight up the foot of the flag pole, buy tickets and climb up. Put your footprint on it; a masterpiece of nature will surprise your eyes. En route, you can admire the beauty of Dong Van Karst Plateau Geopark, recognized by UNESCO as a Global Geopark. Located at an average altitude of 1,000 - 1,600m above sea level, Dong Van Karst Plateau is one of the special limestone areas of the country, containing major historical development of the earth's crust.
From Dong Van to Meo Vac is about 20 km, passing the road Happiness - a legendary road connecting Ha Giang city with four high mountainous districts in the North of Ha Giang. There is a famous pass called Ma Pi Leng with a length of 20 km. At the top of Ma Pi Leng, you can check in with magnificent mountains and the Nho Que stream, winding along the mountain foot.

