Come and enjoy the great outdoors right here in Castle Rock with the Fitness Division’s Free Summer Fitness Series at the Amphitheater at Philip S. Miller Park. Challenge yourself by trying out a new and fun fitness format during Fitness Fridays. June through August each week a new exercise format is highlighted. You can even relax and unwind with Yoga in the Park each Sunday morning. Classes are open to all fitness levels and the entire family is welcome!