Swimming in water temperatures of 41 degrees F and below, with air temperatures between 6.8 degrees F to -4 degrees F, wearing just a swimsuit, cap, and goggles, may sound foolhardy to some. But that is precisely what 400 athletes from 33 countries had to endure in the 3rd biennial International Ice Swimming Championships, held in Murmansk, Russia from March 14, 2019 to March 17, 2019.