Zhangjiakou in Hebei province is a place where visitors can enjoy the natural landscape and cultural festivals, said a senior official.

Mayor Hou Liang said air quality in the city ranked first among all cities north of the Yangtze River for two consecutive years.

In the summer the average temperature in Zhangjiakou is about 20 C, which makes the city a popular getaway for people from surrounding cities like Beijing and Tianjin.