Six service areas. According to the Baidu map, there are 6 service areas on the way from Luzhou to Hainan, so it is 6 service areas. Luzhou, known as "Jiangyang" in ancient times, also known as Wine City and Jiangcheng, is a prefecture-level city in Sichuan Province, a national regional central city, a regional central city in the junction of Sichuan, Chongqing, Yunnan and Guizhou, a central city in the southern wing of the twin-city economic circle in Chengdu and Chongqing, an important trade and logistics center, and an important port city in the upper reaches of the Yangtze River.