Harbin is good in winter and summer, depending on what activities you like. Skiing in winter and summer. Qingdao suggests that you go in July and August. Going to Qingdao means playing in the sea. That season is the best. Hangzhou suggests that you go in spring or winter. Spring is full of flowers, winter is covered with silver, and there are relatively few tour groups. It's a good choice. The best season in Sanya is around the Spring Festival. It's nice to take your family or make an appointment with friends, enjoy a rare rest time for a year and watch and play with the sea.