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Adventure Fitness Athletic Club

5 ★★★★★ 343 Google reviews · Climbing gym in Thornton, Colorado

Auto-belays Yoga & fitness

Family-friendly fitness club offering equipment, classes and rock-climbing walls, along with training.

Plan your visit

  • Day pass around $58 — check current rates; most gyms price gear rental separately and discount off-peak
  • Gear rental nearly every climbing gym rents shoes (~$5–8 typical) and chalk; harness rental is often bundled with a ropes pass
  • Waiver always required at climbing gyms — sign it online before you go to skip the front-desk line
  • First timer? bouldering needs zero experience — rent shoes and walk in; staff will point you at the easiest problems
  • Auto-belays mentioned here — clip in and climb ropes solo, no partner needed
  • Yoga & fitness mentioned alongside the climbing — ask about the class schedule and what a pass includes
  • Memberships available — worth asking about if you'd climb more than a few times a month
  • Today see hours ·
  • Phone (303) 920-2030
  • Website adventurefitness.club

Hours

Monday 4 AM–8 PM
Tuesday 4 AM–8 PM
Wednesday 4 AM–8 PM
Thursday 4 AM–8 PM
Friday 4 AM–8 PM
Saturday 5 AM–2 PM
Sunday Closed

Hours can shift for holidays, competitions, and youth-team practice — worth a quick check before a special trip.

What's inside

Walls and programs at Adventure Fitness Athletic Club, confirmed by climbers' own reviews.

🧘 Climbing + Yoga & Fitness 4 mentions

“Whether you’re looking to build strength, improve cardio, or just stay active, Adventure Fitness Athletic Club is definitely worth checking out.”

All gyms with climbing + yoga & fitness →

What climbers say again and again

The things reviewers bring up again and again across 343 Google reviews — with their own words as proof.

🧼 spotless & clean 13 mentions

“The facility is clean, spacious, and well-maintained, with a wide variety of equipment that caters to both beginners and more advanced fitness enthusiasts.”

🔰 beginner friendly 3 mentions

“The facility is clean, spacious, and well-maintained, with a wide variety of equipment that caters to both beginners and more advanced fitness enthusiasts.”

😊 friendly staff 3 mentions

“However, if you’re looking for a fitness center with a plethora of equipment and classes,an amazing staff and prices that are fair and honest…this is your place.”

café & hangout space 2 mentions

“They also have fully-stocked showers and a lounge area with coffee and snacks so you can get ready for work after an early morning workout.”

🤝 welcoming community 10 mentions

“Susan and Mike are very friendly and knowledgeable, and they were welcoming and very helpful with any questions I had.”

From the reviews

So many good things to say about AFAC. Definitely one of Thornton's best kept secrets. For one. This gym is so well-kept and very clean and sanitary. The staff is very helpful, friendly and treats you like family. So many different varieties of workout classes available.

★★★★★ — Melanie, Mar 2022

These people are so awesome! The space they have created is super welcoming and clean. I came in for a tour and never looked back! I definitely recommend this place to everyone - they have anything you could ever need for beginners (they offer lots of classes) and they also have a great range of machines & weights to…

★★★★★ — Alexis, Jan 2026

I might consider myself a novice gym expert. As a traveling housesitter this summer we have had so many short term gym memberships I cant count them all. This is a great aspect of seeking out locally owned gyms or certain franchises; flexibility in membership. Adventure Fitness fits this bill to a perfect T!

★★★★★ — Russell, Aug 2022

If you’re looking for a fitness center with a cutting edge logo and over glitzy marketing campaigns that raise the rate of your membership, don’t come here. However, if you’re looking for a fitness center with a plethora of equipment and classes,an amazing staff and prices that are fair and honest…this is your place.

★★★★★ — Kelly, May 2024

Excerpts from public Google reviews. Read all 343 reviews →

Where to find Adventure Fitness Athletic Club

12301 Grant St #210, Thornton, CO80241

Get directions Instagram · Facebook

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welcoming community

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Listing verified July 2026 from public business records and climber reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.