Aerial photos taken on Dec. 25, 2018 show scenery of the Laoyuhe Wetland Park during sunny winter weather in Kunming, capital city of southwest China's Yunnan Province. (Xinhua/Hu Chao)

Photo taken on Dec. 26, 2018 shows flowers blossoming during sunny winter weather in Kunming, capital city of southwest China's Yunnan Province. (Xinhua/Lin Yiguang)

Aerial photo taken on Dec. 25, 2018 shows buildings beside the Dianchi Lake during sunny winter weather in Kunming, capital city of southwest China's Yunnan Province. (Xinhua/Lin Yiguang)