The Lung Yeuk Tau Heritage Trail is the second of its kind established in the New Territories by the government. The idea of setting up a heritage trail in this historic area was initiated by the Antiquities Advisory Board. With the full support of the local residents, the North District Council, the Architectural Services Department and North District Office, as well as the Hong Kong Jockey Club, the Lord Wilson Heritage Trust and the Hong Kong Tourism Board, it was brought to fruition after several years of preparation by the Antiquities and Monuments Office, and officially opened to the public on 4 December 1999.

Lung Yeuk Tau, commonly known as Lung Ku Tau, is also called Lung Ling (Mountain of Dragon). It is located northeast of Luen Wo Hui in Fanling, New Territories. The name Lung Yeuk Tau was derived from the mountain range nearby called Lung Yeuk Ling (Mountain of the Leaping Dragon). Its name came from the legendary saying that there was once a dragon leaping in the area.

The Tangs in Lung Yeuk Tau rank as one of the "Five Great Clans" in the New Territories. They originated from Jishui of Jiangxi province and have the strongest claim to the royal descent among their fellow clansmen, for they are the descendants of the eldest son of the princess of the Southern Song dynasty (1127-1279). When the princess took refuge in the south, she was married to Tang Wai-kap of Kam Tin. The eldest son of the royal couple moved to Lung Yeuk Tau at the end of the Yuan dynasty. As the clan prospered, it further branched out to the neighbouring area, establishing the present-day "Five Wais and Six Tsuens" within a few hundred years.

The "Five Wais (walled villages)" include Lo Wai, Ma Wat Wai, Wing Ning Wai, Tung Kok Wai (also known as Ling Kok Wai), San Wai (also called Kun Lung Wai). The "Six Tsuens (villages)" are Ma Wat Tsuen, Wing Ning Tsuen (also called Tai Tang), Tsz Tong Tsuen, San Uk Tsuen, Siu Hang Tsuen and Kun Lung Tsuen.

The Tangs of the area still practise traditional village customs including the communal worship in spring and autumn and Tin Hau Festival, and a lantern lighting ceremony for the newborn baby boys on the fifteenth day of the first Lunar month. On the first day of the second Lunar month there are ancestral worship ceremonies and vegetarian feast. Moreover, Tai Ping Ching Chiu Festival (meaning "the Purest Sacrifice Celebrated for Great Peace") is held once every decade and celebrated by the whole Tang clan as well as people from the neighbouring villages and overseasfamily members.

Many traditional Chinese buildings and structures such as the Tang Chung Ling Ancestral Hall and the Tin Hau Kung,together with the walls and entrance gates and the residences of some of the walled villages, such as Lo Wai and San Wan still retain their historic appearance. These bear testimony to the historical and social development of the area over the past centuries.