Datong town, tong 'an district. According to the Baidu map, lettuce can be purchased in Minnan Fruit and Vegetable Wholesale Market in Tongan District, Xiamen City, Dingxitou Village, Datong Town, Tongan District, Xiamen City. Xiamen, called "Xiamen" or "Heron" for short, also known as Ludao, is a sub-provincial city in Fujian Province, a city with separate plans, a China Special Economic Zone approved by the State Council, and an important central city, port and scenic tourist city in the southeast coast.