Sanya is a beautiful city. The buildings are tall. The trees are tall, too. Summer is their favourite season for many people in Hainan. It's hot and sunny. The boys and girls can wear their sunglasses(太阳镜)and beautiful T­-shirts. They can swim, too. The popular drink in Hainan is coconut(椰子)juice. It's fresh and sweet. It's very delicious. Spring is warm in Hainan. Fall is cool. It seems(似乎)that there is no winter in Hainan. It is often warm and cool in winter there. It's not cold.