Embark on a comprehensive cardio gym workout that begins with a warm-up and stretching session to prepare your body for the exercise ahead. Select your preferred cardio machine and engage in a moderate-intensity workout, incorporating interval training for maximum efficiency. Add variety by switching machines and repeating the workout. Conclude your session with a cool-down period, ensuring you track your progress and hydrate throughout. Don't forget to clean the equipment after use to maintain a hygienic gym environment.