Sapa is a mountainous district of Lao Cai province with an area of 678.6 km2, located in north – west Vietnam. Sapa is 38 km far away from Lao Cai city and 376km from Hanoi city. The population density here is 41.700 people with 6 different hill tribes as H’Mong, Dao, Tay, Giay, Xa Pho, Kinh and Hoa.