CrossFit CASS
Welcome to CrossFit Bunker 7776, Changwon's premier destination for elite functional fitness and community-driven strength training. Under the expert guidance of Head Coach Jangrak Choi, we utilize the proven CrossFit methodology to deliver constantly varied, high-intensity workouts tailored to your individual capabilities. Whether you are a competitive athlete or taking your first steps into fitness, our world-class coaches are here to help you safely progress, master foundational movements, and crush your goals. Join a supportive fitness family where every milestone is celebrated together, and transform both your mind and body inside our state-of-the-art training facility.
Expert Scaling
Every workout can be modified to match your current fitness level, ensuring safety and progress.
Engaged Community
Work out alongside supportive peers who motivate you to finish every WOD strong.
Functional Programming
Develop real-world strength, agility, and endurance with varied daily programming.
Jangrak Choi
Head Coach & Owner
Jangrak is a certified CrossFit coach dedicated to helping athletes of all fitness levels unlock their potential. He specializes in Olympic lifting, athletic performance, and functional movement correction.
Ji-hoon, 29 yrs
"CrossFit Bunker 7776 has completely changed my perspective on fitness. The coaches are highly attentive, breaking down every movement so I can lift safely. The community vibe is unbeatable!"
Min-ji, 34 yrs
"I was intimidated to start CrossFit, but the step-by-step coaching here made it so easy to transition. The workouts are always challenging but scalable to my level. Best gym in Changwon!"
Main CrossFit Box
Spacious training area equipped with high-quality rigs, bumper plates, rowing machines, and assault bikes for dynamic group classes.
Weightlifting Zone
Dedicated platforms with professional barbells and plates optimized for clean & jerks, snatches, and heavy squats.
CrossFit Group Classes
Daily workouts of the day (WOD) combining gymnastics, weightlifting, and metabolic conditioning.
Beginner On-Ramp Course
A specialized program introducing newcomers to foundational movements safely before joining main classes.
42, Dogye-ro 18beon-gil, Uichang-gu, Changwon-si, Gyeongsangnam-do, Korea (the Republic of)
Open in Google MapsPlace ID: ChIJwc5K00JWu4cR-dLYYWQo4e0
CrossFit WOD
Entraînement du jour - séance intense et variée
On-Ramp / Beginner CrossFit
Entraînement fonctionnel varié
Olympic Weightlifting
Specialized class
Open Gym
Accès libre à l'espace d'entraînement
Strengths
- Top-Tier Coaching - Led by experienced coaches like Jangrak Choi who focus on correct movement mechanics and safety.
- Strong Community Support - A highly motivating environment where members support each other through every workout.
- Excellent Equipment - Fully stocked with professional CrossFit gear, including rowers, bikes, and weightlifting rigs.
Watch points
- No Dedicated Parking - Street parking in the Yongji-ro area can sometimes be competitive during peak evening hours.
- Limited Weekend Hours - The gym operates on reduced hours on Saturdays and is typically closed on Sundays.
CrossFit WOD
Our signature workout of the day. Combining elements of gymnastics, Olympic lifting, and high-intensity cardio, this class is fully scalable and designed to build functional fitness.
Objective: High-intensity functional conditioning
Olympic Weightlifting
Focuses exclusively on refining the technical execution of the snatch, clean & jerk, and related strength builds like overhead squats and pulls.
Objective: Strength and technique
On-Ramp / Beginner CrossFit
An introductory class designed to teach the nine foundational movements of CrossFit, ensuring safe mechanics and building confidence for new members.
Objective: Technique and movement mechanics
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Situated in the vibrant Uichang-gu district of Changwon-si, the gym is surrounded by a lively mixture of residential developments, cafes, and local parks, making it highly accessible for neighborhood residents.
Public transport
Easily accessible via local Changwon bus routes stopping along Yongji-ro and nearby major avenues.
Parking
Public street parking is available nearby, though we recommend walking or arriving early during peak evening hours.
Landmarks
Approach
We believe functional fitness is for everyone. Our priority is to build a welcoming, supportive community where physical strength and mental resilience are developed side-by-side.
Methodology
We strictly apply the CrossFit methodology of constantly varied functional movements performed at high intensity, customized through dedicated coach scaling.
Progression
Progress is monitored through consistency in tracking workout metrics, mastering baseline movement mechanics, and moving safely from scale options to prescribed weights.
Unlimited Monthly Pass
- Unlimited access to group classes
- Open Gym access
- Coaching and scaling support
3-Month Unlimited Pass
- All benefits of Unlimited Monthly
- Discounted multi-month rate
- Progress tracking support
First visit
Please arrive 10-15 minutes early to meet Coach Jangrak Choi, take a quick tour of the box, and discuss any athletic history or physical limitations.
Required equipment
Comfortable athletic wear, flat cross-training or athletic shoes, a water bottle, and a personal workout towel.
What a typical session looks like
Every session includes a 10-15 minute dynamic warmup, a technique/strength progression session, the high-intensity WOD, and a cool-down stretch.
Rig & Gymnastics
Cardio Machines
Free Weights & Lifting
CrossFit Open
The annual worldwide CrossFit competition where our members test their fitness and celebrate community spirit.
In-House Team WOD
A friendly weekend team competition designed to bring our community closer together through fun fitness challenges.
Jangrak Choi
Jangrak Choi has been a passionate leader in the Changwon functional fitness community for years. He believes that technique is the foundation of all athletic progress and takes a personalized approach to helping each athlete reach their highest goals safely.
CrossFit HQ
Official worldwide affiliate representing CrossFit standards, philosophy, and safety practices in Changwon.
Flexible membership options including monthly unlimited passes, class packages, and special beginner packages. Contact the gym directly for seasonal promotions and student discounts.