Fenjiezhou Island is located in Lingshui, at the junction with Wanning City and Sanya City. The reason why it is called Fenjiezhou Island is its unique geographical location. It is the only dividing line of the coastline in China, 18° north latitude. The sea water is blue on the subtropical side and green on the tropical side. If the weather is good, the change from blue to green is particularly wonderful. If by climate, one side is a subtropical climate and the other is a tropical climate. Since ancient times, there has been a "bull head rain, ox tail clear" statement. In fact, standing on the top of the mountain, the left arm is in the subtropical, the right arm is in the tropical, this feeling is really wonderful.