Cao Bang province is the region where many Vietnamese ethnic groups live on forestry and farming It shares 314 km of border with China. The weather here is cool all year round. In winter, snow covers some mountain peaks sometimes. An Giac waterfall in Trung Khanh is magnificent at the height of 30 meters. Many wild orchids grow in this region. Open markets are good places for many horses with the owners in colorful costumes.

Lang Son is the frontier town to China. Local people live on exchanging trade at the border. Many open markets for local people, mainly the Vietnamese ethnic groups Tay, Nung, Hmong, Dao are interested. Forest products like bear hides, forest leaves used as medicine, honey, stuffed reindeers are common. Here, local food generally consists of forest products and trees of deep and strong fragrance. Tam Thanh Caves mean three grottoes in Lang Son were formed inside the limestone mountain. The most interesting cave is the Tam Thanh with the shape of a lady waiting on the mountain. Legends said that a lady and her child were waiting for her husband, a combatant who left home for the war. She kept waiting for him, but there was no news from him. She herself and her child became stone. They stand waiting forever.

Tourists can get to both of these places via bus, the best is by Land Cruiser or Russian Jeep via Thai Nguyen Province, Bac Can Province, then head to Cao Bang and back to Lang Son. On the way, there are many beautiful landscapes such as: Ethnic Museum in Thai Nguyen City, Ba Be National Park and Ba Be Lake in Bac Kan, Ban Gioc waterfall in Cao Bang, and markets, landscapes in Lang Son. Within 5days, you can see all of these fantastic places.