Krutak was an outdoorsman at heart and enjoyed mountain climbing, scaling numerous 14,000-footers in Colorado, Mt. Rainier in Washington, as well as 17,000+ foot volcanic peaks in Mexico, including Pico de Orizaba, Popocatépetl, and Iztaccíhuatl. He was also an avid handball player and won many championships, playing well into his 60s. One of his sons is the anthropologist Dr. Lars Krutak.