FLAGSHIP LOCATION
CHARLESTOWN

Join our flagship location located at the heart of Sullivan Square in Charlestown! We opened our doors in 2021 and are committed to continuing to provide a space perfect for YOU. See below for membership options and included amenities!

JOIN NOW

Book your tour to see the space!

We recommend new members book a walk-through tour to see all that the space has to offer. During your tour, you will have the option to stay and get in a FREE trial workout on us!

Book Now

CHARLESTOWN MEMBERSHIPS

YEARLY

Join our Yearly membership for the best rate! Our Yearly membership is offered at $75/month.

6 MONTH

Our 6 Month Membership is offered at a discounted rate of $85/per month.

MONTHLY

Enjoy the convenience of a month-to-month membership option for $105/month.

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INCLUDED AMENITIES

Every Mass Underground, Charlestown membership includes access to all of our cardio equipment, machines, free weights, saunas, ice baths, lockers, and facilities.

Your membership grants you access to our Charlestown location Monday-Sunday, 365 days.

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CONNECT WITH US

@massunderground.charlestown

FLAGSHIP LOCATION CHARLESTOWN