China has transformed the National Aquatics Center, colloquially known as the "Water Cube," into an "Ice Cube" for the Beijing 2022 Winter Olympic Games. It will hold test curling competitions during the first test event of the Beijing competition zone in April. Its methods for transforming water and ice, and the innovation in the upgrading process, will be the highlights of the test event. CGTN's Zheng Yibing takes you to where the curling event will be held in the "Ice Cube."