F3 is a network of free, participant-led workouts for men that take place almost exclusively outdoors and in the early morning hours. F3 — our three Fs stand for Fitness, Fellowship and Faith — traces its roots to a free, participant-led boot camp workout held on Saturday mornings at a Charlotte, N.C., park since 2006. The leaders of F3 launched their first Saturday workout on 1/1/11, on the campus of A.G. Middle School in Charlotte. See more at http://f3nation.com/about-us/