Son La, the fifth largest province in the country, is located to the northwestern region of Vietnam. Eighty percent of the province’s natural area is covered with mountains. The province is populated by various ethnic groups, including the Ma, H’mong, Dao, Muong, Kinh, Khmer, Tay, Thai, and so on. Son La has a temperate climate throughout the year.

Tham Tet Tong is a complex of marvelous grottoes located only 1.5 km from Son La. Excursions to Tay Bac Mountains and bathing at Ban Mong Hot Springs are available. Visits to ethnic minorities hamlets are also popular.