Hello, friends in Tianjin. There is no direct train from Tianjin to Nanning. You can choose to change trains in Shijiazhuang and Baoding, but I suggest you change trains in Zhengzhou. It depends on your own arrangement. From Nanning to Bama, there are buses from Peking University, Anji and Langdong to Bama. If you ask the best time, you don't have to come in June, July and August, but there are too many northerners coming in October, so renting a house is a problem, and you may not wake up when you come.