Group 1 - The preparation work for the Harbin Ice and Snow World, which includes 200,000 cubic meters of stored ice, is underway, marking an important foundation for the 27th edition of the event [1][3] - Strict controls are in place for every stage of the ice storage process, including careful selection of ice and the construction of a protective barrier to maintain optimal conditions for the ice [3] Group 2 - Ski resorts in Heilongjiang are accelerating preparations for the winter snow season, with snowmaking machines operating continuously to ensure snow quality [4][6] - Merchants in the Qinyun Town are also preparing for the ice and snow season, with increased staffing and inventory to meet anticipated demand [8] - In the city of Shuangyashan, ski resorts are conducting rescue drills and updating equipment to ensure safety and readiness for the upcoming season [10] - The ski resort in Mohe is in the final stages of preparation, with snowmaking and grooming equipment operating around the clock, expecting to open next week [11] Group 3 - Ski resorts in Jilin are also in the final stages of preparation for the new snow season, with trial skiing activities being held to enhance the skiing experience [13][14] - The Beidahu Ski Resort is set to officially open on November 15, and has introduced various promotions, including discounts for university students and improved transportation options from the airport [16][18] - The Changbai Mountain International Resort has added new advanced snow trails and will open various facilities to cater to both novice and experienced skiers [18]