Group 1 - The 15th National Games will open on November 9, with multiple events held in the Hong Kong venue, including rugby sevens, handball, and fencing [1] - The Kai Tak Sports Park, covering an area of 28 hectares, is located on the site of the former Kai Tak Airport [1] - The main venue features a flexible turf conversion system, allowing for the arrangement of the field based on the needs of different events [3] Group 2 - The sports park is equipped with artificial grow lights that can assist in turf growth 24 hours a day, ensuring optimal performance for athletes [4] - There are over 30 food stalls within the park, offering a variety of local Hong Kong delicacies during the National Games [6] - The main venue can accommodate over 65,000 spectators, necessitating a waste classification and recycling system to manage waste generated during large events [9] Group 3 - The park utilizes microbial technology to convert food waste and paper containers into compost for plant fertilization, promoting waste utilization and landscape maintenance [9] - Recycling ambassadors will be present during the National Games to promote environmental awareness among spectators [10] - The event aims to be a green and environmentally friendly sports occasion [10]