Marine Race Through Recon Challenge - NBC 7 San Diego

    Marine Race Through Recon Challenge

    Two dozen pairs of reconnaissance Marines are racing this 23-mile "Recon Challenge" which involves swimming and trekking through a difficult course. (Published Friday, May 17, 2013) Two dozen pairs of reconnaissance Marines are racing this 23-mile "Recon Challenge" which involves swimming and trekking through a difficult course. See More