Moscow ice swimmers are preparing the hole for an “anti-COVID” workout. A kind of “exercise” in winter clothes is quickly replaced by gymnastics in summer ones. The thermometer shows minus 20 degrees, and the group in bathing suits runs, do push-ups and squats in the open air as if nothing had happened. Under the strict guidance of Natalia Sedaya, a cold endurance coach, Moscow ice swimmers regularly set personal records. They have a hot heart and a healthy spirit. Not only ice swimmers, but also scientific studies prove the benefits of cold.