Core Viewpoint - The event of the National Games, hosted jointly by three regions, has ignited the enthusiasm for sports among the Greater Bay Area's residents and promoted a new trend of healthy living, accelerating cross-city integration among Guangdong, Hong Kong, and Macau [1]. Group 1: Sports Development in Macau - Macau has nearly 2,000 sports clubs among approximately 12,000 total clubs, covering 45 categories including handball, billiards, boxing, cycling, and bodybuilding [5]. - The National Games features events like volleyball and table tennis held in Macau, contributing to the city's vibrant sports culture [1][5]. - The Grand Prix, a historic racing event, will coincide with the National Games, enhancing the city's lively atmosphere [5]. Group 2: Basketball Culture in Dongguan - Dongguan has a comprehensive basketball ecosystem with over 6,900 basketball courts and more than 100,000 youth receiving training annually [6]. - The city hosts over 5,000 basketball matches each year, showcasing its strong community engagement in the sport [6]. Group 3: Cross-City Integration through Sports - The men's individual road cycling race is the only event crossing the three regions, covering over 230 kilometers and requiring athletes to pass through customs six times without stopping [9]. - A chip system is implemented to track athletes and customs personnel, facilitating smooth cross-border movement during the event [11]. - The "self-service customs" initiative has made it easier for residents from Hong Kong and Macau to participate in cross-border cycling activities [15]. Group 4: Emerging Sports in Zhuhai - Zhuhai is developing modern sports such as ice skating, ice hockey, equestrian, and fencing, attracting participants from Hong Kong and Macau [13]. - The number of Hong Kong and Macau students in equestrian training has increased significantly, indicating a growing interest in these activities post-integration [17].