Atlanta is increasingly establishing itself as a fitness town, and the fun isn't confined to ITP. With so much outdoor adventure to choose from in Atlanta's suburbs, it's worth checking out the indoor options, too. Here are four of the trendiest gyms in Cobb County has to offer:

Be Yoga

107 Church St., Marietta. 404-642-1877.

A Marietta studio that regularly offers free classes outdoors as well as donation-based classes in support of various causes, Be Yoga invites its students to be many things —"Be Hot" at one of their five heated classes (including one hot pilates class, a rare find in Atlanta), "Be Yin" in the non-heated stretching class or "Be Pregnant" in the class for expecting mothers. Even kids have a place at Be Yoga. Little ones can try the "Be Silly" class, a fun introduction to yoga basics geared towards children ages 4 to 8.

9round Kickboxing Fitness

2100 Roswell Road, Suite 2186, Marietta. 470-377-4285.

People aren't going to run out of excuses for skipping the gym any time soon, but at this new Roswell Road kickboxing studio, a lack of time certainly isn't going to be one of them. In just 30 minutes, 9round offers a full-body workout that torches calories and builds strength with routines that change on a daily basis. By moving stations every three minutes, students don't have time to get bored, and the motivating coaches and variety in movement ensures that fun is built into every workout.

Rowbot Fitness

2030 Powers Ferry Road SE, Suite 368, Smyrna. 678-310-3233.

The results of rowing in a regular workout regimen speak for themselves. "It literally works every major muscle group," Rowbot Fitness co-owner Charles Anderson told the AJC back in 2012 when the studio was just starting out. Since then, the rowing classes have become a staple in many Cobb County fit fans' routines, helping to sculpt the body and build endurance. Varying workouts between quick sprints and long distances allow those training on the rowing machine to switch things up without the need for added equipment, and with high-energy classes there's always someone there to push students to do their best.

Thrive Beyond Fitness

5 Mountain St., Atlanta. 404-973-0074.

Thrive Beyond Fitness lives up to its name, offering programs in yoga, cycling and group fitness as well as services in massage, reflexology, life coaching, nutrition and more. Fitness is just one piece of the wellness puzzle, and this well-kept studio does a great job of promoting balance without slacking on serving up a satisfying sweat. Classes range from salsa dancing to two-hour conditioning to yoga to bosu, and everything in between. Those looking to try out several kinds of fitness regimens will surely find a home in this suburban Atlanta gem.