Group 1 - The article highlights the popularity of ice and snow activities in Beijing's Chaoyang district during the winter season, offering various indoor and outdoor ice rinks for different experiences [1][27] - The Aoyuan Longxing Water System Ice Rink has expanded its area to approximately 60,000 square meters, making it one of the largest natural ice rinks in northern Beijing, featuring multiple ice entertainment options [3][4] - The Chaoyang Joy City Champion Ice Rink provides an Olympic-standard ice surface of 1,800 square meters, equipped with advanced cooling and ice maintenance technology, catering to professional ice sports enthusiasts [5][7] Group 2 - The Ice Cube Ice Sports Center offers a standard ice rink of 1,830 square meters and four curling lanes, allowing visitors to experience skating and curling in a Winter Olympic atmosphere [8][10] - The Workers' Stadium has transformed into a large ice and snow amusement park, featuring an ice rink, snow slides, and various fun activities suitable for families [12] - The Tuanjiehu Ice and Snow Amusement Park includes over ten types of ice vehicles and attractions, such as snow tubing and a mini Ferris wheel, creating a whimsical experience for visitors [17][18]

Group 1 - The Qiantang Bay Future Headquarters Base is under construction, featuring landmark buildings such as an art museum, museum, library, and an international youth exchange center [1] - The Fengbei TOD commercial complex is the first commercial project in the core area of the Qiantang Bay Future Headquarters Base, integrating technology headquarters, a super five-star hotel, a youth talent community, and cultural commerce [1] - The Fengbei TOD project is set to commence construction this year, with a design that reflects the local mountainous contours and aims to create a vibrant future technology headquarters [1] Group 2 - The second phase of the Hangzhou International Expo Center is set to open in the first quarter, enhancing the synergy between the first and second phases [2] - The second phase has a building area of 460,000 square meters, with an exhibition area of 60,000 square meters, positioning it among the largest exhibition complexes in the country [2] - The Hangzhou Hot Snow Miracle indoor ski resort, the largest in Zhejiang, will begin construction in the South Station core area, covering over 100,000 square meters, including more than 50,000 square meters for the indoor ski area [2]