Swimming is an excellent way to get into and stay in shape. If you do not own a pool, many high schools have aquatic centers, or there is always the YWCA or YMCA, or your local gym. Many offer water aerobic classes that will help you tighten your body, lose weight, and get a good overall workout.
Dancing
Dancing is so much fun and whether you enjoy a slow, Ballroom dance or a nightclub packed with people all moving to heart-pumping techno, as long as you are moving, it really does not matter what type of dance or music. The whole idea is to move your body. Dancing has long been recommended as an avenue to fitness.