Flipping a tire end-over-end is both a common boot camp exercise and a gross misunderstanding of what the wheel was meant to do. Reinvent physiques with today's Groupon to Feel the Burn Bootcamp . This Groupon is valid at the locations in Studio City, Woodland Hills, and Chatsworth. Choose between the following options: For $35, you get one month of unlimited boot camp classes (a $225 value). For $80, you get four 30-minute personal-training sessions (a $200 value). The enthusiastic trainers at Feel the Burn Bootcamp guide groups through a packed schedule of vigorous outdoor boot camp workouts. Using a cornucopia of tires, kettlebells, and body-weight exercises, the fitness gurus lead an invigorating regimen that, like a frozen Rubik's cube, challenges both muscles and minds. Armed with a month of unlimited classes, guests chisel their physiques in park settings atop blankets or yoga mats from home. For one-on-one routines, exercisers can team up with a certified personal trainer, who helps vanquish flab with resistance training, cardiovascular work, and tips for healthy eating. Throughout the four 30-minute sessions, the staff helps monitor improvement by tracking reps, sets, and honed abilities to resist chocolate-covered burritos.