Hainan province is located in the most southern part of China, and includes Hainan Island as well as the Zhongsha, Xisha, and Nansha archipelagoes, and the surrounding sea areas. Hainan is sunny over 300 days per year, making it the perfect tropical island vacation destination. The island enjoys a tropical monsoon climate, clean air, plenty of sunshine, green leaves all year round, long summers and mild winters.