请结合以下所提供的信息写一篇介绍海南岛(Hainan Island)的文章。
1. 海南岛位于中国的南部，面积35,000多平方公里，是中国的第二大岛。
2. 海南岛是典型的热带气候，气温范围23℃--39℃，植物种类繁多且终年常绿，森林覆盖率达51%。
3. 海南岛是中国的一颗明珠。景色优美，空气新鲜，是著名的旅游胜地，其中天涯海角最为出名; 年游客量二百多万人。
要求：1. 词数100词左右
2. 可适当整合并增减细节
参考词汇：平方公里 square kilometre; 典型热带气候 typical tropical climate;
明珠 pearl； 天涯海角 Ends of the Earth
Hainan Island, a pearl lying in the south of China, is the second largest island in China with an area of 35,000 square kilometres.
People on Hainan Island can enjoy typical tropical climate, which is quite pleasant and makes various plants on the island stay green all the year round.. The average temperature ranges between 23℃ and 39℃ and 51% of the island is covered with forest.
The climate is so nice and the weather is so clear that every year, more than two million tourists come here to enjoy the beautiful scenery, fresh air and famous places of interest, among which Ends of the Earth is the most popular.