A pond is pictured at Longquanhu Wetland Park in Shjiazhuang, north China's Hebei Province, July 9, 2020. Transformed from a garbage dump, Longquanhu Wetland Park has now become a good place for leisure activities. (Photo by Chen Qibao/Xinhua)

A visitor takes photos at Longquanhu Wetland Park in Shjiazhuang, north China's Hebei Province, July 9, 2020. Transformed from a garbage dump, Longquanhu Wetland Park has now become a good place for leisure activities. (Photo by Chen Qibao/Xinhua)

People visit Longquanhu Wetland Park in Shjiazhuang, north China's Hebei Province, July 9, 2020. Transformed from a garbage dump, Longquanhu Wetland Park has now become a good place for leisure activities. (Photo by Hei Naile/Xinhua)

Aerial photo shows Longquanhu Wetland Park in Shjiazhuang, north China's Hebei Province, July 9, 2020. Transformed from a garbage dump, Longquanhu Wetland Park has now become a good place for leisure activities. (Photo by Liang Zidong/Xinhua)

Aerial photo shows Longquanhu Wetland Park in Shjiazhuang, north China's Hebei Province, July 9, 2020. Transformed from a garbage dump, Longquanhu Wetland Park has now become a good place for leisure activities. (Photo by Liang Zidong/Xinhua)