文创市集、科普研学，北京市属公园百项游园活动迎双节

Group 1 - The Beijing Park Management Center is organizing over 100 park activities to celebrate the upcoming Mid-Autumn Festival and National Day, including music performances, educational activities, and night tours [1] - A series of patriotic education activities will be held at various parks, including a new themed exhibition at the Cherry Valley site commemorating the 90th anniversary of the December 9th Movement, and a fall study tour for students at Xiangshan Park [2] - The National Botanical Garden and other parks are hosting flower exhibitions, including the 4th Chrysanthemum Exhibition and the 3rd Chrysanthemum Cultural Festival, showcasing over 200,000 autumn flowers [3] Group 2 - Yuyuantan Park will provide telescopes for visitors to enjoy moon viewing during the Mid-Autumn Festival, along with lantern-making activities [4] - All 56 entrance gates of municipal parks and the China Garden Museum will implement security checks during the holiday, with measures in place for crowd management and monitoring [5][6] - The park management center recommends "hidden gem parks" for off-peak visits, featuring various activities to enhance visitor experience [5]