Visitors in hanfu, a traditional Chinese clothing, went for a walk surrounded by cherry blossoms at Yuyuantan Park in Beijing on March 29, 2020. Due to the novel coronavirus epidemic, there is only one way in and out of the park and crowd flow is controlled. [Photo by Zou Hong/chinadaily.com.cn]

Visitors admire the cherry blossoms at Yuyuantan Park in Beijing on March 29, 2020. [Photo by Zou Hong/chinadaily.com.cn]

Visitors play with bubbles surrounded by cherry blossoms at Yuyuantan Park in Beijing on March 29, 2020. [Photo by Zou Hong/chinadaily.com.cn]

Visitors admire the cherry blossoms at Yuyuantan Park in Beijing on March 29, 2020. [Photo by Zou Hong/chinadaily.com.cn]

A notice board stands at the entry of Yuyuantan Park, which says crowd flow is under control and only one-way travel is allowed, on March 20, 2020. [Photo by Zou Hong/chinadaily.com.cn]

A child takes pictures of cherry blossoms at Yuyuantan Park in Beijing on March 29, 2020. [Photo by Zou Hong/chinadaily.com.cn]