Tuen Mun District is one of the 18 districts in Hong Kong, China, and one of the most populous residential areas in Hong Kong. The southern part of Tuen Mun District, Castle Peak Bay, was reclaimed in the 1970s and developed into Tuen Mun New Town together with the surrounding coastal area. Tuen Mun District includes the entire Tuen Mun New Town, in addition to Lam Tei, Tai Lam Chung, Siu Lam, So Kwun Wat, Lung Kwu Tan and Lo Kok Tsui. Tuen Mun is a typical emerging satellite town of Hong Kong, China located in the western part of the New Territories. Take a bus from the MTR Tsuen Wan Station, take the Tuen Mun Highway with the sea on the left hand side, and proceed to the west for about 20 minutes to see the white-colored high-rise residential clusters. The structure of the streets is extremely similar to the large neighborhoods built on reclaimed land in Japan. Among the many residential clusters, there are parks, supermarkets, and public civic halls, preserving an artificial and modern atmosphere. Before it became a satellite town, Tuen Mun had been a port town associated with trade and fishing since ancient times. As far back as the Spring and Autumn Period (770-475 B.C.), the salt and fishing industries were developed, and the central government stationed soldiers here to protect these industries, which is why the name "Tuen Mun" is derived from "gateway where the army was stationed and guarded". As time went on, many Persians and Indians who traveled to Guangzhou to do business with China during the Tang Dynasty (618-907 A.D.) and the Song Dynasty (960-1279 A.D.) used the area as a place of residence, and Tuen Mun prospered. During the Ming Dynasty (1368-1644 AD), the Portuguese landed here as a base for their invasion of China. At the end of the Qing Dynasty (1644-1911), the British used the area as a transshipment point for opium trafficking to China, but Tuen Mun did not continue as a trading port after that because it was not "ceded" land, but "leased" land. Tuen Mun is a new residential area, and there are Taoist temples such as Ching Sung Kwan, Ching Shan Temple, and Miaofa Temple, which are popular sightseeing spots.