Core Insights - The equestrian events of the 15th National Games are taking place at the Guangming International Equestrian Center in Shenzhen, showcasing a new benchmark for sports integration in the Greater Bay Area through close collaboration between Guangdong and Hong Kong [1][9]. Group 1: Event Organization and Cross-Border Cooperation - Many Hong Kong spectators are taking high-speed trains to Shenzhen for the events, with travel times as short as 31 minutes from West Kowloon to Guangming City Station, significantly enhancing the viewing experience [3]. - The event requires a high level of professional support, with a temporary veterinary clinic established at the venue by a team from Hong Kong, in addition to the veterinarians brought by each participating team [5]. - The introduction of a smart identification system by Guangzhou Customs has improved the efficiency of cross-border horse identification, allowing for automatic matching in 2 to 3 seconds through multi-angle image capture [7]. Group 2: Professional Services and Innovations - The collaboration between Guangdong and Hong Kong in organizing the equestrian events has provided new experiences for deeper sports cooperation in the Greater Bay Area, covering aspects from event organization to customs facilitation and professional service systems [9]. - The CEO of the Hong Kong Jockey Club highlighted that joint hosting of events fosters closer ties between cities and involves significant institutional innovations, such as cross-border collaboration and cooperation among diverse sectors [11].