Tourists visit the Nanxun Ancient Town on the second day of the three-day Qingming Festival holiday in East China’s Zhejiang province, April 6, 2019. [Photo/Xinhua]

A girl offers tea to her mother while learning tea etiquette on the second day of the three-day Qingming Festival holiday at a juvenile development center in Hangzhou, East China’s Zhejiang province, April 6, 2019. [Photo/Xinhua]

Tourists feed a giraffe while visiting Hainan Tropical Wildlife Park and Botanical Garden on the second day of the three-day Qingming Festival holiday in Haikou, South China’s Hainan province, April 6, 2019. [Photo/Xinhua]

Young people attend an on-site painting session at a tea garden on the second day of the three-day Qingming Festival holiday in Hengxiwu village of Anji county, East China’s Zhejiang province, April 6, 2019. [Photo/Xinhua]

Tourists visit Xuchang Museum on the second day of the three-day Qingming Festival holiday in Xuchang, Central China’s Henan province, April 6, 2019. [Photo/Xinhua]

Tourists visit a scenic area on the second day of the three-day Qingming Festival holiday in Qiyunshan town of Xiuning county, East China’s Anhui province, April 6, 2019. [Photo/Xinhua]

Tourists visit the Summer Palace on the second day of the three-day Qingming Festival holiday in Beijing, capital of China, April 6, 2019. [Photo/Xinhua]

Tourists visit the Mingsha Mountain and Crescent Moon Spring scenic area on the second day of the three-day Qingming Festival holiday in Dunhuang, Northwest China’s Gansu province, April 6, 2019. [Photo/Xinhua]

Performers stage a show on the second day of the three-day Qingming Festival holiday in Paixiong village of Aizhai town, Jishou, Central China’s Hunan province, April 6, 2019. [Photo/Xinhua]

In this aerial photo taken on April 6, 2019, tourists take boats on the ancient moat surrounding the old city of Xiangyang on the second day of the three-day Qingming Festival holiday in Xiangyang, central China’s Hubei province. [Photo/Xinhua]

Tourists visit the Nandong Yigu scenic area on the second day of the three-day Qingming Festival holiday in Dinghai district of Zhoushan, East China’s Zhejiang province, April 6, 2019. [Photo/Xinhua]

Tourists take photos of peony flowers at Tangwangling Park on the second day of the three-day Qingming Festival holiday in Bozhou, East China’s Anhui province, April 6, 2019. [Photo/Xinhua]

Tourists pose for a selfie amid cole flowers on the second day of the three-day Qingming Festival holiday in Donggequan village of Shahe, North China’s Hebei province, April 6, 2019. [Photo/Xinhua]

Tourists visit Shantang ancient street on the second day of the three-day Qingming Festival holiday in Suzhou, East China’s Jiangsu province, April 6, 2019. [Photo/Xinhua]

Aerial photo taken on April 6, 2019 shows visitors enjoying the spring scenery on the second day of the three-day Qingming Festival holiday at Dafeng district in Yancheng city, East China’s Jiangsu province. [Photo/Xinhua]