Visitors skate and ride ice carts on the frozen surface of Kunming Lake at the Summer Palace in Beijing in this video posted last month. The seasonal attraction operates during winter when the lake freezes, drawing residents and tourists to one of the city's best-known imperial gardens. The ice-covered area spans about 160,000 square meters, making it the largest natural outdoor rink in Beijing.（Edited by Huang Jingjing and Liu Yunyun）