Gu 'an County, which belongs to Langfang City, has a superior geographical position and is the nearest county in Hebei Province to Beijing. Gu 'an is called "at the foot of the son of heaven" in ancient times and has a long history. Known as "Fangcheng" in ancient times, it has always been a land of wealth in history. It is only about 8 kilometers away from Beijing Daxing Airport. There is a Yongding River in the north of the county seat, which is the natural dividing line with Beijing and faces Beijing across the river.

Gu 'an County is known as the hometown of flowers and trees in China and hot springs in China. There are many tourist attractions related to hot springs in Gu 'an, including Kangyiquan Hot Spring and Jinhai Hot Spring.

Gu 'an also has Yongding River Bicycle Sports Park, which is the first bicycle theme park in China with the largest volume and meeting international standards. The park is divided into sports track area, cultural activity area and other functional areas, among which the track area has various professional facilities such as standard loop track, crater cross-country track and rock cross-country track. Located on the south bank of Yongding River, the park has pleasant scenery and is a good place for cycling.