Every winter, elderly people from all over the country leave their cold hometowns, like migratory birds, and move to the warm south to spend the winter. Hainan, China's only tropical island province, is very popular among them.
In the early morning or evening, when you walk into the squares and parks, you can see "old migratory bird" playing music, singing and dancing everywhere. Some people are not willing to be lonely, and invite a few friends to go to the world and sea, embarking on a smooth journey that they have never experienced in their youth.