A child plays bubbles at Evergreen Park in Haikou, south China's Hainan Province, Jan. 12, 2021. (Xinhua/Pu Xiaoxu)

A man runs at Haikou bay in Haikou, south China's Hainan Province, Jan. 12, 2021. (Xinhua/Pu Xiaoxu)

People enjoy themselves at Evergreen Park in Haikou, south China's Hainan Province, Jan. 12, 2021. (Xinhua/Pu Xiaoxu)

People enjoy themselves at Evergreen Park in Haikou, south China's Hainan Province, Jan. 12, 2021. (Xinhua/Pu Xiaoxu)

A girl flies a kite at Evergreen Park in Haikou, south China's Hainan Province, Jan. 12, 2021. (Xinhua/Pu Xiaoxu)

People enjoy themselves at Evergreen Park in Haikou, south China's Hainan Province, Jan. 12, 2021. (Xinhua/Pu Xiaoxu)