Push your limits at Soldiers of Fitness boot camp, This exercise crew takes its name seriously. This challenging, military-style workout starts before the sun rises, with exercises that include good-old push ups, sit ups and extreme cardio training as well as running with sandbags and tug-of-war sessions. These intense, outdoor classes promote a sense of camaraderie and accountability as you work toward common fitness goals. Drill sergeants lead classes at various times through the day.