An aerial view shows a section along the Haimen-Taicang Yangtze River Tunnel, a major trans-river road link beneath China's longest river, connecting Nantong's Haimen with Suzhou's Taicang, facilitating connectivity between the two cities in Jiangsu province. Better transportation infrastructure nationwide has boosted domestic tourism. The Ministry of Transport said on Friday that China logged 33.76 billion cross-regional passenger trips in the first half of 2025, a 4.2 percent increase over the same period last year.