We Are
Boulder
Welcome to Colorado Athletic Club – Flatirons, where Fitness Coaches are your friends, and great conversations carry on long after your workout. Our members and guests love our social activities that range from happy hours to group hikes and training for the Bolder Boulder.
Boulder Gym Membership
Comfortable and welcoming, Colorado Athletic Club-Flatirons offers our members and guests the best fitness options in Boulder County.
Fitness Training in Boulder
There’s training, and then there’s personal training. Get to know our professionally certified team, and discover they’re as talented at what they do as they are personable. With sessions available throughout the day, achieving and surpassing your goals is closer than ever.
Racquetball - Tennis - Pickleball
Boulder’s premier destination for racquetball, squash, tennis and pickleball, our Flatirons club has a vibrant court sports community. Take lessons, find competitive matches or just hit around for awhile. The ball is in your court.
Indoor Swimming in Boulder
Looking for laps or relaxation? Why not both? We’ve got options. Our indoor pool has four lanes for your training needs. With over 300 days of sunshine each year, enjoy our heated, six-lane outdoor pool year round.
Fitness Studios in Boulder
The studios at Colorado Athletic Club – Flatirons are designed for you to get the most from your workout. Seamlessly move from a warrior pose in yoga class to our outdoor pool as you get ready for your next triathlon.
Family Fitness in Boulder
Boulder has mastered the work/life balance better than most cities. Spending quality time with your family—and staying healthy while doing so—is easier than ever with our Family and Kids’ programs.