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About Arenal Fitness

Arenal (R-N-Nal) Fitness, established in 2010 and voted Baltimore’s Best, is a 24/7 access, 5,000 square foot functional training facility that offers a variety of CrossFit group classes, personal training options, and General Memberships to all ages and demographics. The high energy training and programs that we teach in our facility inspired us to name ourselves after the active Arenal Volcano in Costa Rica.

When you walk into Arenal Fitness you will see some traditional pieces of cardiovascular and strength training equipment but will quickly notice that what we offer is more geared to free weight and functional movements. This is because we want to focus on exercises that will help you to function better in your everyday life. Why go to a gym and spend countless hours performing arm curls and leg extensions, which will never help you to pick your child off of the floor or easily get out of a chair? Come to Arenal Fitness and learn movements that you can practically apply to your daily routine!!

If you are used to a more traditional style of training, we will be happy to take you through a complimentary demo workout to for you to experience a true functional training workout.

Gym Amenities

6,666 lbs. of Weight Equiptment

415 lbs. of Slam Balls

1979 lbs. of Kettlebells

903 lbs. of Barbells

3,045 lbs. of Weight Plates

924 lbs. Dumbbells

324 lbs. of Medicine Balls

Cardio Equiptment

2 Treadmills

1 Elliptical

4 Upright Bikes

7 Concept 2 Rowers

18 Training Areas with Multi-Use Functional Training Rig

LifeFitness Cable Motion Machine

Up to 2 Miles of Outdoor Run/Walk Paths

Exercise Accessories

150' Battling Ropes

1,052" of Jump Boxes

Medicine Balls

Jump Ropes


and much more...

Other Amenities

3 Private Changing Rooms

3 Showers

2 Restrooms

Hand Sanitizer


Gym Wipes

24/7 Key Fob Access

911 Emergency Alert System

Surveillance Cameras

Our Story

Donna Pierce and Lauren Closic have worked in the fitness industry for a combined 52 years, 21 years virtually side by side.

After becoming Certified CrossFit instructors in 2007, Donna and Lauren realized that this was their true passion and decided to work towards developing their own box. The idea was to bring their love of CrossFit to the masses and help people realize how much they are capable of doing; from the person who has never exercised before to the elite athlete.

In addition to being Level 1 CrossFit instructors, Donna and Lauren also hold the following certifications:

  • CrossFit Kettlebells

  • CrossFit Mobility

  • CrossFit Olympic Lifting

  • CrossFit Kids

  • CrossFit Football

  • Mud Chasers Trainers

  • Conditioning Exercise Specialists

  • Post-Rehab Exercise Specialists

  • Medical Exercise Specialists

Donna Pierce and Lauren Closic - Gym Owners
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