Boao Dongyu Island Hot Spring [Photo provided by Boao Hope City] 

The Boao Dongyu Island Hot Spring integrates various functions of hot spring physiotherapy, rehabilitation, beauty, health, and leisure. It is the only island and coastal hot spring in China, and also one of the most complete and advanced hot springs in Asia. The hot spring covers a total area of 78,000 square meters and the water temperature is up to 73 C. As a sodium oxide modified hot spring, it is rich in metasilicic acid, strontium, radon and other precious medical mineral elements, and has a daily hot spring volume as high as 78,000 tons.