Book Your Next Party Today!

Serving Middlesex County and Surrounding Areas


3 Stories of Tubes and Tunnels

40’ long 8’ high rockwall for lots of fun and adventures.


The Ultimate Indoor Playground

The perfect place for kids to be kids!

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Contact Us Today

We can’t wait to have fun with you!

Why Choose Us?

  • Our programs are centered around enhancing each child's self-esteem
  • Encouraging fitness in a fun and safe environment
  • Comprehensive Indoor playground

One Stop Fun is graduating and emerging as mPower Athletics!! Click HERE for more information on our relaunch and current offerings.


Summer 2023

Time to start making plans for the Summer!  We have a ton of great options for the whole family:

Our general registration form is HERE.  Call us at 978-692-9907 for details.

Stay tuned for the return of our indoor play center!

We are currently limiting admission to our facility to Gymnastics and Ninja Classes, Team Gymnastics, birthday parties, field trips and Parent Night Out events.  For more information on any of these programs, please call us at 978-692-9907.  

We have discontinued daily admission to our facility.  But, check out our class, party and special event offerings HERE.  We can’t wait to see you.

Encouraging Fitness in a Fun & Safe Environment

At One Stop Fun, our main goal is to provide a fun and active environment for your children. Our entire team believes in creating a fun space with activities that boost self-esteem and encourage fitness. We are fully committed to providing a high-quality experience to all of our customers and we want every customer to have a safe and fun time. We are fully equipped with a number of outstanding amenities such as an advanced Ninja training rig, outdoor Olympic-size pool, zip line, three whole stories of tunnels and tubes, foam pit, traverse rock wall and more. Call us at (978) 692-9907 to request more information about our classes and services.


We also provide a wide assortment of programs, activities, and services including: Whether your child is taking a class, exploring the three stories of tubes and tunnels in our Ultimate Indoor Playground, or climbing our indoor rock wall climbing structure, you will love your time at One Stop Fun. Our wide array of offerings is sure to spark the enthusiasm of children of all ages, interests, and skill levels. Spend some time enjoying our unique and comprehensive indoor playground for an entire day or just a few hours. When your child wants a break from playing our snack bar provides delicious options for lunch or just a snack to recharge the batteries.

Plan a Visit to One Stop Fun Today

We have a committed staff that is dedicated to creating a positive and enriching environment for your children while they are here. As always, adults and children under one are free when you come to our Westford facility. Contact us at (978) 692-9907 to register for a class, to book a visit, or to request more information about any of our other activities or options!

We Are a Nut-Free Facility

We are a completely nut-free facility. Out of respect for our customers with nut allergies, we do not sell or allow products containing nuts in our facility. Please, no outside food or drinks allowed without prior authorization by management. Thank you for helping us keep everyone safe, healthy and happy!


  • Gymnastics

  • Tunnel

  • Pool