Caption this... Yes, it is cold. Yes it is extreme but IISA has established a comprehensive set of safety and swimming rules to ensure that you remain safe. #iceswimming #openwater #ice #swimming #iceswim #swiminice #openwaterswim #openwaterswimming #swim #swimming #worldchampionships #worldchamps #olympicsport #olympic #olympics #theolympics #winterolympics #winterolympicgames #worldrecord #worldrecords #extremesports #extreme