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Celebrate Your Birthday at GAB - Medford!

Welcome to celebration central! Let GAB give you the best birthday party you will ever have! Our energetic staff will maximize your experience and our spacious, well-equipped gym will create an atmosphere for a great celebration!


For more information please contact our birthday

party coordinator at 617.441.9700 or


We look forward to celebrating with you!

The birthday child and 17 friends will enjoy group activities such as obstacle courses, games, jumping, rolling, parachute games, and more!

After some fun in the gym, it’s off to our Party Room to celebrate!

One and a half hour party (1 hour in gym time 30 minutes party room time).

Time slots for parties are generally available on Saturdays from 1 - 2:30pm or 2:30pm - 4pm, and on Sundays from 1:00 - 2:30pm or 2:30pm - 4pm.


If no other parties are scheduled on the desired date of your party, you must take the earliest available time slot. If these times do not work for you, please contact us with your specific requests, and we will do our best to accommodate you! 

Price for Members: $250*

Price for Non-Members: $300*

Hosts must provide all food, drinks, paper goods, and decorations. Prices include clean-up fees. For over 18 children, there is an additional $10 charge per child. For over 22 children, there is also a $30 charge for an extra instructor. Reservations may be made by phone, email, or in person. A non refundable deposit of $75 is required at time of booking to reserve your party. If you need to cancel your reservation, please do so within two weeks of your scheduled party or you will be charged a fee of $125. Each child that attends a birthday party will receive a complimentary trial class. A special gift will be given to our party guest!

GABM’s Flip-tastic Party Package

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