Hanoi is the capital of Vietnam. It covers an area of 3,328.9 square kilometers (1,285 sq mi). With an estimated population of 8.1 million as of 2019.

Sa Pa Town is located in Lao Cai Province, north-west Vietnam, and 350 km north-west of Hanoi, close to the border with China.

Visit Cat Cat village - home of Black H’Mong People, you visit Cat Cat waterfall and the Hydrofoil constructed by the French in the 19th Century, visit a family of H’’Mong People to understand their culture and customs.