In a groundbreaking event, China’s 15th National Games marked a historic moment with its first-ever cross-boundary torch relay, held simultaneously across Guangdong, Hong Kong, and Macao on Sunday. The relay, which commenced just one week before the Games’ opening, symbolizes unity and collaboration within the Greater Bay Area. The launch ceremony took place in Shenzhen, a southern coastal city, with the torch relay extending to Hong Kong, Macao, Guangzhou, and Shenzhen. A total of 200 torchbearers, including renowned physicist Xue Qikun and former Olympic diving champion Yang Jinghui, participated in the event. The ‘source flame’ was uniquely extracted from combustible ice located over 1,500 meters beneath the South China Sea in September. The relay concluded with the convergence of torch flames from the four cities at the Guangdong Olympic Sports Center in Guangzhou, where they were merged into a single flame. This unified flame will ignite the main cauldron at the opening ceremony of the 15th National Games on November 9, marking a significant moment in the history of the event.