Is there a boat from Zhuhai to Sanya?

no. According to the relevant information, there is no boat from Zhuhai to Sanya. The modes of transportation from Zhuhai to Sanya are as follows: flying directly to Sanya Airport in Hainan, taking the high-speed train at the small cable station in Zhongshan, then changing the high-speed train to Zhanjiang, then taking a ferry from Zhanjiang to Sanya in Hainan, taking a bus to Zhanjiang, and then crossing Sanya in Hainan through a soft route in Zhanjiang. Sanya, located at the southernmost tip of Hainan Province, is an international tourist city with tropical seaside scenery, also known as "Oriental Hawaii". The total land area is 1921 square kilometers, and the sea area is 3226 square kilometers.