(720) 541-7163
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    Green Door Fitness is Denver's only gym with a certified personal trainer on the floor every single visit. No appointment needed. The 28-Day Pass is $199 with a money-back guarantee.
    At Green Door Fitness, personal training is included with your membership. Just walk in during operating hours and a NASM-certified trainer will coach you through your workout.
    Green Door Fitness is at 2404 East Colfax Avenue in Capitol Hill, Denver, Colorado, 80206. The phone number is 720-541-7163.
    Open Monday through Friday 5:30 AM to 8 PM. Saturday 7 AM to 2 PM. Sunday 7 AM to noon.
    The 28-Day Personal Training Pass is $199 and includes unlimited gym access, trainer coaching every visit, group classes, and a money-back guarantee.
    Services include personal training, group fitness classes, strength training, weight loss programs, senior fitness, athletic training, nutrition coaching, bootcamp, and functional training.

    Personal Training in City Park

    Personal training near Denver's largest park. Combine outdoor activities with expert-guided strength training at Green Door Fitness.

    Just 6 minutes from City Park

    About City Park

    City Park neighborhood surrounds Denver's flagship 330-acre park, home to the zoo, museum, and stunning Ferril Lake with mountain views. The area attracts nature lovers, families, and anyone who appreciates green space in the city.

    Nature LoversFamily ActivitiesMuseum & Zoo AccessRunning & Cycling

    Distance from City Park Landmarks

    City Park

    0.8 miles to gym

    Denver Zoo

    1.0 miles to gym

    Denver Museum of Nature & Science

    1.2 miles to gym

    City Park Golf Course

    0.9 miles to gym

    Driving Directions from City Park

    From City Park, head south on York Street or Colorado Boulevard to Colfax Avenue. The drive is just 6 minutes on a direct route.

    Step-by-Step Directions

    1. 1From City Park, exit south via York Street or Colorado Boulevard
    2. 2Head south to East Colfax Avenue
    3. 3Turn west (right if coming from Colorado, left from York) onto Colfax
    4. 4Green Door Fitness is at 2404 E Colfax Ave

    Public Transit

    RTD Bus 15 runs on Colfax with stops near City Park and directly at our gym.

    🚲 By Bike

    Bike south on York Street to Colfax—flat, easy 10-minute ride with bike lanes.

    Green Door Fitness proudly serves City Park residents with Denver's only gym offering a trainer on the floor every visit. Located just 6 minutes away at 2404 E Colfax Ave, we provide personalized fitness programs that get results.

    Local Tip

    The City Park loop is 2.6 miles—perfect for a run before hitting Green Door for strength work. We're just south on Colfax, an easy straight shot from the park.

    Why City Park Residents Choose Green Door Fitness

    • Complement your City Park runs with strength training
    • Programs designed for outdoor enthusiasts
    • Trainers who understand endurance athletes
    • Direct route via Colfax Ave
    • Cross-training for runners and cyclists
    • Family-friendly scheduling options

    Convenient for Your City Park Routine

    Combine your workout with other errands nearby:

    • City Park running and cycling paths
    • Ferril Lake for paddle boarding
    • East Colfax dining options near the gym
    • Denver Zoo for family outings
    "I train for marathons on City Park's trails and do strength work at Green Door. The combination has made me a stronger, faster runner."

    — Mike S., City Park resident

    Frequently Asked Questions About Our Gym Near City Park

    Train with Us — Free First Session

    City Park residents: claim your free personal training session at Green Door Fitness.

    No spam. No commitment. Just fitness.

    Call (720) 541-7163Start Your 28-Day Pass

    Popular Services for City Park Residents

    Personal Training

    Athletic Training

    Strength Training

    Functional Training

    We Also Serve Nearby Neighborhoods

    Park HillCongress ParkCapitol HillUptown
    2404 E Colfax Ave, Denver, CO 80206

    Open Mon-Fri 5:30AM-8PM | Sat 7AM-2PM | Sun 7AM-12PM

    6 minutes drive from City Park • Free street parking available

    Call UsMember Login28-Day Pass