Lang Son has potentiality of mineral, forestry, tourism and trading. The province is proud of many culture and historical vestiges. They are Rampart of Mac Dynasty, Doan Citadel Vestige, Chi Lang Defile, Ky Cung and Bac Le temples. Apart of these, Ky Lua Market, To Thi and Mau Son mountains, Tam Thanh, and Nhi Thanh grottoes also attract many visitors every year. Especially, lots of people come to Ky Lua and Tam Thanh markets to shopping because the goods are abundant and cheap. Coming to there, tourists are interesting in Ky Lua or Long Tong traditional festivals. Ky Lua Festival takes place every year at Lang Son city (22nd to the 27th of the 1st lunar month). The festival honors Than Cong Tai who had merit to establish Ky Lua Street and broadening trade. The solemn palanquin procession imprints national tradition. There are many folk games. The festival attracts many people even Chinese visitors.