CLOSURE UPDATE: Per mandate from Governor Polis, and because it is the right thing to do, our facilities are closed. Check here for COVID-19 updates. We are running emergency childcare only for families who have no other choice.


Ladies Who Lift

Hey ladies, are you ready to pump some iron? Ladies Who Lift is a unique opportunity to train with our very own award-winning bodybuilder, Misty Deiparine! This class will give you the tools to feel comfortable in the weight room, lifting heavier weights safely. In this program, you will learn the proper techniques and form to prepare, lift and recover optimally, increasing the benefits of strength training and reducing the risk for injury. Remember, lifting heavier loads increases muscle, metabolism and bone density. Ages 18+. 

Arapahoe Y

Wednesdays, March 11- April 8, 9:00-10:15am

No class March 

  • Member: $100
  • Non-member: $150


Bolder Boulder Training Program - POSTPONED

Do you want to participate in the BolderBOULDER 10K but not sure where to start? If you are new to running or have taken an elongated break from it, join a welcoming, non-intimidating group with motivating coaches. The YMCA training team will walk you through an 8-week progression training program that will keep you injury free and motivated in a fun environment. We will work together to conquer 6.2 miles!

Program Includes:

  • 8 weeks of training
  • 2 coached workouts per week
  • Base training for BolderBoulder 10k or 5K
  • Expert advice covering running topics from shoe fit, form and injuries, training gear and nutrition

Longmont Y

New dates TBA

Members Only: $50

Climb Your First 14er

In this eight-week program, learn about the logistics of hiking a 14er (what to wear, eat, drink, etc.). Get your body conditioned for the challenge with a twice a week comprehensive strength and endurance training program. We’ll prepare for the altitude gain with two Saturdays training hikes (optional, but strongly encouraged). For ages 18+. Instructor: Dave Brounstein

Meets at the Arapahoe Y

June 22-12, Mondays and Wednesdays, 6:00-7:00am

  • Member: $249
  • Non-member: $349

Level 1 Training Hike, Mount Sanitas (6,843 elevation): Mount Sanitas via Lion’s Lair is a five-mile loop trail that features a pretty steep climb for the first mile and then a gradual four-mile decent down Lion’s Lair. The elevation gain of this hike is 1,489 feet.

Sat, July 11, 7:00am

Level 2 Training Hike, Bear Peak (8,459 elevation): Bear Peak is an 8.1-mile loop trail located near Boulder. The hike has beautiful scenery from start to end with vast meadows sprawling with wild flowers, forests and towering evergreens. The elevation gain of this hike is 2,847 feet.

Sat, Aug 1, 7:00am

Quandary Peak (14,265 elevation): Quandary Peak Trail is a 6.7-mile out-and-back trail located near Breckenridge, featuring beautiful wild flowers and incredible views. The elevation gain of this hike is 3,339 feet. 

Sat, Aug 15, start time TBD


Blog Post Thumbnail

How to Prep for Your First 14er

Tackling your first 14er can be intimidating. We've asked an expert to offer up tips to help you get motivated, train and stay safe. READ MORE

Free Drop-in Classes

Class Schedule

Fitness Boxing

Fitness Boxing class you’ll get a full body workout while learning traditional boxing techniques. Build strength, stamina and speed with an emphasis on fitness in this fun group boxing class. 

Functional Strength Training 

A class for those that would like to strengthen, define and sculpt their physique. Work out with a personal trainer in a small group setting (maximum of 6 participants). This is a progressive program that will also focus on muscle imbalances and flexibility using a variety of techniques making your workouts fun, effective and time efficient.

Pilates Reformer

Pilates Reformer at the Y provides members with strength, flexibility, coordination and endurance. Simplified levels make it effortless to know which class will work best for you. Learn more about Pilates Reformer options.

Running Club 

This class will introduce members to various styles of running, including intervals, fartlek runs, tempos, and speed work. It also contains a brief classroom portion to dispel the mystery behind running form, nutrition, stretching, shoes, and other aspects of the sport, followed by a workout that will tone the whole body while stimulating the cardiovascular system. 


A full body workout focused on strength training. Using barbells, dumbbells, (the heavy ones) Kettlebells, and Body weight. To build a stronger you.


Encounter a different treadmill and strength workout every time you come to the Y. In an environment that allows for a lot of oversight and personalization, you will get a well-rounded workout that utilizes steady-state, intervals, speed and hills along with excellent strength work. Cardio? Weights? Check, check. You will get it all done in one hour in this class. 

TRX 30 

Born in the US Navy SEALS, TRX® Suspension Training is a method of leveraged bodyweight exercise. Perform hundreds of exercises that build power, strength, flexibility, balance, mobility and prevent injuries. This is higher intensity 30 minute class format.

TRX 45 

Born in the US Navy SEALS, TRX® Suspension Training is a method of leveraged bodyweight exercise. Perform hundreds of exercises that build power, strength, flexibility, balance, mobility and prevent injuries. Class Format 45 minutes.


Born in the US Navy SEALS, TRX® Suspension Training is a method of leveraged bodyweight exercise. Perform hundreds of exercises that build power, strength, flexibility, balance, mobility and prevent injuries. 60 minute format.

TRX Circuit 

A performance training tool that leverages gravity and your body weight to enable hundreds of exercises. The exercises simultaneously develop strength, balance, flexibility and core stability. Get a fast, effective total body workout. This class will benefit people of all fitness levels and abilities.

Women on Weights I 

You will learn varied training principles, a focus on core, hip and shoulder stability training, cross training and the principles of moderate to high intensity training. The entire body will be trained during each workout.

Women on Weights II

This class is designed for women who have completed Women on Weights I. We will continue to focus on exercises and training addressed in WOW but will add to our training experience by continuing to work on fundamental movements while introducing new exercises along with working to increase weight and track progress. 

Blog Post Thumbnail

Is High Intensity Interval Exercise Right For Endurance Athletes?

YMCA Trainer Martin Kretz looks at how HIIT training can benefit endurance athletes. READ MORE

Blog Post Thumbnail

7 Fitness Classes to Try at the Y

The YMCA of Boulder Valley offers a wide variety of classes to keep your workouts fresh and exciting. Here are 7 classes to try. READ MORE