The largest service area in China.

Cold water service area. Cold water service area is the first batch of "100 demonstration service areas" in China and "five-star service areas" in Chongqing. Cold water service area is the largest service area in China, with a total area of 28 1 mu, of which eco-tourism self-driving camp covers an area of 160 mu, with a construction area of 9,800 square meters. It consists of six functional areas, including the main building of the service area, the square, the eco-tourism self-driving camp, the emergency rescue center, the gas station and the toll lane of the open service area.