Families plant trees at wetland park in Hangzhou to greet Arbor Day

A child ties a card on a tree to record its growth in the Xixi National Wetland Park in Hangzhou, east China's Zhejiang Province, March 10, 2019. A total of 30 families planted trees at the wetland park on Sunday to greet the upcoming Arbor Day. (Xinhua/Huang Zongzhi)