Tourist boats sail in the Liujiaxia reservoir in northwest China's Gansu Province, April 4, 2025. Qingming Festival, or Tomb-Sweeping Day, fell on April 4 this year. It is a traditional Chinese festival during which people pay tribute to the dead and worship their ancestors. The holiday also provides a short break for China's residents to engage in outdoor activities or go sightseeing. (Photo by Shi Youdong/Xinhua)