Situated beneath the artificial lake of the Workers' Stadium on Gongti North Road in Chaoyang District, Blue Zoo Beijing has been one of the capital's most distinctive aquatic attractions since opening in 1997. As the first five-star aquarium of its kind established in Beijing, it spans 7,800 square metres and houses over 600 aquatic species across a series of themed exhibition zones. Its centrepiece — a 120-metre acrylic underwater tunnel — remains one of the longest of its kind in Asia, offering face-to-face encounters with sharks, rays, and colourful reef fish in a fully immersive setting.