According to Deputy Director of Lang Son Department of Culture, Sports and Tourism Pham Minh Dao, during the pilot period, Chinese self-driven tourist cars will be visited and tourism in the border gate economic zone. Dong Dang - Lang Son on specific road routes (except border belt roads). Range of activities on National Highway 1, National Road 4A, provincial roads, district roads according to each specific tour. Self-driving car of Chinese tourists departing on the border to visit Vietnam tourism Photo: VNA The maximum duration of a tour is 3 days. Scale for self-driving tour cars at least 3 units / group, maximum 10 units / delegation. The number of self-driving tourist cars entering and leaving Dong Dang - Lang Son border-gate economic zone shall not exceed 50 units / day. In contrast, Vietnamese tourists can drive to Sung Ta and Nanning, Guangxi - China.