Russian tourists prepare to board a high-speed train to Suifenhe at Mudanjiang Railway Station in Mudanjiang, northeast China's Heilongjiang Province, Sept. 15, 2026. Cross-border tourism and people-to-people exchanges between China and Russia have become more active since the introduction of optimized visa-free policies in 2025. (Photo by Gao Fugui/Xinhua)

　　A Russian tourist takes photos at a night market in Heihe, northeast China's Heilongjiang Province, Sept. 15, 2026. Cross-border tourism and people-to-people exchanges between China and Russia have become more active since the introduction of optimized visa-free policies in 2025. (Xinhua/Na Yuqi)

　　Foreign passengers proceed to border inspection at a port in Heihe, northeast China's Heilongjiang Province, Sept. 14, 2026. Cross-border tourism and people-to-people exchanges between China and Russia have become more active since the introduction of optimized visa-free policies in 2025. (Photo by Zhao Donglai/Xinhua)