People play in the fashion and leisure zone at the National Stadium, also known as the Bird's Nest, in Beijing, capital of China, Dec. 27, 2025. The winter theme park of the Bird's Nest kicked off on Saturday and will run till late February 2026. The event features an ice and snow activity zone, and an outdoor fashion and leisure zone. (Xinhua/Xie Han)

A child enjoys sliding on an inflatable snow sled outside the National Stadium, also known as the Bird's Nest, in Beijing, capital of China, Dec. 27, 2025. The winter theme park of the Bird's Nest kicked off on Saturday and will run till late February 2026. The event features an ice and snow activity zone, and an outdoor fashion and leisure zone. (Xinhua/Xie Han)

People enjoy sliding on an inflatable snow sled outside the National Stadium, also known as the Bird's Nest, in Beijing, capital of China, Dec. 27, 2025. The winter theme park of the Bird's Nest kicked off on Saturday and will run till late February 2026. The event features an ice and snow activity zone, and an outdoor fashion and leisure zone. (Xinhua/Xie Han)

People enjoy sliding on an inflatable snow sled outside the National Stadium, also known as the Bird's Nest, in Beijing, capital of China, Dec. 27, 2025. The winter theme park of the Bird's Nest kicked off on Saturday and will run till late February 2026. The event features an ice and snow activity zone, and an outdoor fashion and leisure zone. (Xinhua/Xie Han)

A child enjoys sliding on an inflatable snow sled outside the National Stadium, also known as the Bird's Nest, in Beijing, capital of China, Dec. 27, 2025. The winter theme park of the Bird's Nest kicked off on Saturday and will run till late February 2026. The event features an ice and snow activity zone, and an outdoor fashion and leisure zone. (Xinhua/Xie Han)