CrossFit Lions Den offers different workouts every day, keeping both members and their muscles guessing. On any given day, people toss weighted medicine balls in the air, swing kettlebells to-and-fro, and jump onto wooden plyometric boxes. They also climb ropes and hang from Gymnastics rings. Each workout will contain some form of Olympic-style weightlifting, the cornerstone of Crossfit. Certified trainers tailor each exercise to ensure that members of all athletic abilities avoid injuries while remaining challenged. Classes are designed to have you out the door in an hour, roughly the same time it takes to floss.