Welcome to ABC

ABC is a first-of-its-kind climbing gym designed from the ground up with youth climbers in mind. Our facilities include challenging and engaging terrain for all skill levels from very beginner to elite athlete. Our boulders are set according to the size of climbers in their age category, allowing for logical and motivating progression.

Your First Visit

Take a moment to fill out our waivers and streamline your check-in experience. Waivers are necessary for all participants or parents of participants.

Let's get started

Try it out: Open Gym

Open gym is a great opportunity for beginners to try out ABC for the first time, or for experienced climbers to come in and project outside of practice time. Open Gym time allows full access to the ABC facility, and all passes are full Day Passes.

$20 per Climber

All rental equipment included

Open Gym Hours:

Monday - Friday: 9:00am - 12:00pm

Saturday - Sunday: 12:30pm - 5:00pm

*Possible space limitations due to birthday parties during weekend Open Gym

Create an Account

Gym Rules

Climbing is inherently dangerous, but our gym rules will help you mitigate that risk.

Rules for Adults

  1. All climbers and guests must check in at the front desk prior to climbing.

  2. All children under 12 must have active adult supervision for the duration of the visit

  3. All children under 14 must have an adult on premises for the duration of the visit.

  4. Any adult who wants to belay must first pass a Belay Test, and may be required to re-certify annually. 

  5. Adults wishing to operate the Auto Belays must sign the release and be able to demonstrate correct use of the Auto Belays.

  6. Only trained adults, trained children over age 14, and ABC staff members are allowed to operate the Auto Belays.

  7. Immediately report all hazards to a ABC staff member. This includes, but is not limited to, climber misconduct, spinning holds, equipment misuse, spills on floor, etc.

  8. No bouldering on top rope or auto belay walls.

  9. Please come to the front desk if you have any further questions or concerns.

Rules for Kids

  1. All climbers and guests must check in at the front desk prior to climbing.

  2. No running

  3. Do not walk under or climb over other climbers, and always be mindful of climbers.

  4. Anyone over the age of 14 who wants to belay must first pass a Belay Test.  Once certified as a ‘Junior Certified Belayer’, 14-18 year olds belayers are still required to have active adult supervision.

  5. Children under the age of 14 are not allowed to operate the Auto Belays.  Please have an adult clip you in and out.

  6. Anyone climbing in the gym must be able to properly demonstrate and utilize a controlled fall. If you do not know how to do one, please ask an ABC staff member.

  7. Please return all equipment and toys to their proper location.

  8. No bouldering on top rope or auto belay walls.

  9. No topping out anywhere in the gym.

  10. Please come to the front desk if you have any further questions or concerns.

Frequently Asked Questions

  • ABC Kids Climbing is a

  • Description text goes here

  • Description text goes here

  • Description text goes here

  • Item description

  • Item description

  • Item description

  • Item description
“Cannot say enough good things about this facility and the guys working there. Took my 5 & 6 year old, first time climbers here for an open gym session and everyone was so friendly. They were extremely encouraging to the little ones and provided clear and easy instruction to help them improve as our visit went on. Would highly recommend coming here and if we visit Boulder again, will certainly be back!”
— Michelle A.
“Such a fun, safe spot! A great way to build kid’s confidence & dexterity, whilst also working off a bunch of energy!”
— Andrea B.
“Super cool place with tons to do. Loved all the activities, staff was great.
The classes are great and the coaches are fun and knowledgeable. The kids truly learn so much every week.”
— Vera P.

Voted Best Climbing Gym & Best After-School Program in Boulder County — 8 years in a row!

“My 8-year-old and I booked a guided outdoor climb through ABC Kids and couldn’t be more pleased with the experience. Our guide was a blast to climb with - meticulous, patient, and knowledgeable not just about safety and gear, but seemingly recommendations for all of Colorado to give to us tourists.”
— Emily G.