Tourists watch a performance onboard a tourism train in northeast China's Heilongjiang Province, on Dec. 28, 2025. Train Y999/998, an ice-and-snow themed tourism loop train, started a six-day trip on Sunday. (Photo by Yuan Yong/Xinhua)

Tourists pose for photos with a tourism train at Harbin East Railway Station in Harbin, northeast China's Heilongjiang Province, Dec. 28, 2025. Train Y999/998, an ice-and-snow themed tourism loop train, started a six-day trip on Sunday. (Photo by Yuan Yong/Xinhua)

Tourists pose for photos onboard a tourism train in northeast China's Heilongjiang Province, on Dec. 28, 2025. Train Y999/998, an ice-and-snow themed tourism loop train, started a six-day trip on Sunday. (Photo by Yuan Yong/Xinhua)

Tourists experience local culture onboard a tourism train in northeast China's Heilongjiang Province, on Dec. 28, 2025. Train Y999/998, an ice-and-snow themed tourism loop train, started a six-day trip on Sunday. (Photo by Yuan Yong/Xinhua)