Pictures taken on March 31 show citizens camp at the Xihuayuan Park in Kunming.

It was a bright day with blue sky, and the temperature rose to 24 to 25 degrees Celsius in the afternoon. Tender plants in the park seemed to have trouble in dealing with such unexpected heat, with some showing an air of listlessness. 

Reporting by Zhang Tong (Yunnan Daily); trans-editing by Wang Shixue