If you like Bai tie-dyeing and blue cloth, go to Zhoucheng, Xizhou. Start from the ancient city of Dali and drive 20 kilometers north. Every design is more beautiful than every one! If you have time, you can listen to the tie-dyeing process and process described to you by Bai nationality elder sister. You are surprised to find that Isatis root is not only a medicinal material, but also the main material of tie-dyeing.