Adhering to the principle of high standard, high grade and sustained development, Shenzhen presents many new, unique, and special tour products focusing on environment protection. Urban and Rural Tours include the Seafood and Wanfeng villages in Bao'an District, the Hakkas and Nanling villages in Longgang District, and Xin'an Ancient City in Nanshan District. Urban Tours include Stock Exchange markets, Mental and Mineral Trading Center, Book City, Diwang Mansion, Industrial Exhibition Hall, and hi-tech enterprises. Industrial Tours include the third phase of Jinwei Beer Brewery Co., Ltd. Shopping Tours combine entertainment, shopping, and sightseeing together in Commercial Street of Tourism established in Luohu and Futian districts, and show tourists with the new, unusual and special shopping environment. Shenzhen also further develops incentive and convention tour, golf tour and convalescence tour.