This aerial photo taken on Jan. 5, 2023 shows tourists visiting the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Xie Jianfei)
Tourists visit the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Xie Jianfei)
Tourists visit the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Jianwei)
Tourists visit the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Xie Jianfei)
Tourists visit the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Song)
This photo taken on Jan. 5, 2023 shows tourists visiting the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Song)
This aerial photo taken on Jan. 5, 2023 shows tourists visiting the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Jianwei)
Fireworks light up the sky over the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Jianwei)
Tourists visit the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Jianwei)
A tourist takes pictures at the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Xie Jianfei)
This aerial photo taken on Jan. 5, 2023 shows fireworks lighting up the sky over the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Jianwei)
Tourists visit the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Song)
Fireworks light up the sky over the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province, Jan. 5, 2023. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Xie Jianfei)
This aerial photo taken on Jan. 5, 2023 shows fireworks lighting up the sky over the Harbin Ice-Snow World theme park in Harbin, northeast China's Heilongjiang Province. The opening ceremony of the 39th Harbin International Ice and Snow Festival was held on Thursday. (Xinhua/Wang Jianwei)