So you can try one of these markets:
Tuesday: Coc Ly Market -A very small market where you can meet with the Flower Hmong, Black Zao, Nung and Tay. During your visit you will also take a boat ride along Chay River and a short walk to Trung Do village of Tay minority
Wednesday: Sin Cheng Market -This small market in Si Ma Cai district, (37 km from Bac Ha) is a great location to meet the White H'mong, Flower H'mong, Black Dao, Tay and Giay ethnic costumes. Sin Cheng market is the most unspoiled market in this remote area, near the Sino-Vietnamese border. Road conditions are poor and the market can be suspended during bad weather.
Thursday: Lung Khau Nhin - 15 km out off Sapa en-route to Lai Chau you will cross the 1900 meter high Tram Ton pass (Vietnam's highest). A variety of minority tribes people gather to sell their wares. Expect to see Tai Lu, Tai Laos, White Tai, and H'mong amongst others.
Edited: 5:35 am, August 30, 2013