Group 1 - The "International Carbohydrate Festival" organized by Aoyuan officially commenced on May 1, featuring over a hundred vendors offering a variety of domestic and international cuisines, summer coffee drinks, artistic handmade crafts, and outdoor sports experiences. The event is free to the public and will run until May 5 [1][3]. - The festival includes traditional Chinese food from brands like Quanjude and Donglaishun, as well as international cuisines such as American, Mexican, and Malaysian dishes. Visitors can also purchase intangible cultural heritage crafts like tie-dye and handmade pottery at creative stalls [1][2]. - Interactive activities at the festival include a "earn carbohydrates" sports check-in, sightseeing at the Olympic Tower, and a prize wheel lottery [1]. Group 2 - In addition to food, visitors can enjoy sports activities at the Olympic Forest Park, participate in fun challenges at the Decathlon interactive area, and track calorie consumption on the smart running track. There are also opportunities for rock climbing at the North Peak Olympic Forest Park and participation in tennis events at the National Tennis Center [2]. - From May 2 to 4, the South Garden Open-Air Theater in Olympic Forest Park will host the "China Music Power: Olympic Forest Youth Trend Culture and Art Exhibition Season" [2]. - The Olympic Tower will feature a light show at night, with its 246.8-meter observation deck becoming a popular spot for visitors to enjoy sunset views and the night scenery of Beijing, blending historical and modern elements [5].