24 Hour Fitness is offering a FREE 3 day guest pass. Just sign up and print the pass or show on your phone. With the pass you can work out at any club without an appointment and even try the group classes. With over 400 locations, 24 Hour Fitness offers a variety of fitness solutions including personal training services, innovative group exercise classes and a variety of strength, cardio and functional training equipment. Click here to find a location near you.