Long Island's Best CrossFit Gym in the heart of Deer Park

Discover a stronger, healthier you with the support of elite coaches & a welcoming community
Limited Time Offer!

Summer Savings at Pack! 🥂🎉

Save 44% when you sign up for 3 months!
– No commitment
– 2 foundational private 1:1 sessions
– 3 Months of Unlimited CrossFit classes
– Access to our PAC app


Welcome to
Pack Athletic Club!

Discover a stronger, healthier you at Pack Athletic Club located in the heart of Deer Park, NY! We offer group fitness classes for adults, teens & kids along with personal training and team athletic clinics for all fitness levels! Experience our motivating community by getting started today!

Our Training Programs

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    Group Fitness Classes

    Coach-led 60-minute CrossFit classes that combine weight-lifting, cardio, and functional movements. Suitable for all ages and fitness levels.

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    Supplemental Programs

    At no extra charge, we offer additional or alternative programming that suit your needs. Say you need a day of recovery but still want to work out? Check out Pack Pulse. Looking for a little extra on top of the normal 60 minute CrossFit class? Check out the Pack 90.

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    Personal Training

    Personalized training sessions guided by expert coaches, focusing on individual goals through tailored exercises. Ideal for all fitness levels and ages

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    Team Conditioning Clinics

    Unite, train and triumph! At Pack we provide sports teams with high-intensity, collaborative workouts that foster team spirit and peak performance. Conditioning is the key to success for young athletes!


Total Box Jumps Jumped


Wall Balls Thrown


Dog Treats Dispensed


Bones Given (or dabs, whichever you prefer)

How To Get Started


Schedule your 1:1 Chat

Click the button below to connect with one of our coaches to discuss your fitness goals!

Try A Class On Us!

Experience a free class at Pack to get a feel for our workouts and meet our community!

Find the Perfect Membership

Choose the ideal membership, whether you want unlimited classes, a punch card or personal training!

Our Facility

Deer Park’s Only CrossFit Gym
3000 Sq. Feet
Top of the Line Equipment
Recovery Room / Lounge
Dog & Baby Friendly
15′ Ceilings

What the Pack is saying

Testimonials from some of our incredible Pack members.

Diana A.

I'm so grateful to have found PAC.

As a brand new CrossFitter, I was looking for a space where I felt comfortable and supported while learning the ins and outs of this sport, and that is exactly what I found at PAC. This is an inclusive and encouraging community that celebrates all of its athletes, at all different fitness levels, and ensures that you receive the proper training and guidance each and every class. Mike and Kristin are amazing and it is so evident how much passion and dedication they have for this endeavor. PAC has become an integral part of my week, and I truly look forward to each class. PAC isn’t just a gym, it really is like a family, and one I feel lucky to be a part of. If you’re looking to start CrossFit, or you are a seasoned athlete, look no further than PAC.

Diana A.

Pack Member

David C.

Mike Gillespie has a calling for coaching.

Coach Mike is highly effective at coaching all levels of athletes, from those just beginning their fitness journey to those who compete professionally. As a father, I am most impressed by the programming he creates for kids. Seeing him teach children how to move well and safely and inspiring kids to embrace fitness as part of their lifestyle has been a true joy. As soon as my toddler is ready for training, I will be bringing him to Coach Mike.

David C.

Pack Member


Coach Mike is the Best!

Coach Mike is the best! The dedication he has to fitness, wellness goes beyond the line of duty. He truly listens, cares and makes it his personal goal to help you embark the journey of wellness/fitness. No matter what level of fitness you are in, I truly recommend Coach Mike for you! He is not just a coach, he is also a true friend!


Pack Member

Lauren O.

Mike is an amazing fitness instructor!

Mike is an amazing fitness instructor. Each work out is strategically planned to not only get a complete work out in but also to keep you motivated. My nine-year-old daughter absolutely loves the kids class. Mike makes it fun with games to keep the kids working out in a fun environment. Mike makes it very welcoming that you’re not just a number when you walk in his gym. That you actually do become a part of his Pack. I highly recommend this gym!

Lauren O.

Pack Member


PAC combines high intensity interval training with a dash
of old-school CrossFit charm. Experience the way CrossFit should be with never random, always varied programming & dedicated coaches to support you through every movement.

Deer Park, Long Island

850 Grand Blvd
Deer Park, NY 11729



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Pack Athletic Club

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