A key tunnel, the last and the longest of the 50 tunnels on an intra-provincial railway, was drilled through and completed in south China's Guangdong Province on May 30 after more than 35 months of work. The new route, Guangzhou-Shantou high-speed rail spans 206.2 kilometers to connect the provincial capital Guangzhou with major cities in the Guangdong-Hong Kong-Macao Greater Bay Area. The travel time from Guangzhou to Shanwei will be shortened by two-thirds from two hours to 40 minutes once the railway goes into operation next year.