Mass Underground, LLC
8.5 • Gym
Gym features state-of-the-art equipment, sauna and cold plunge, and an excellent layout that maximizes space. Atmosphere is supportive and welcoming, with energy shaped by music and community. Workouts focus on high-level training without ego or intimidation, attracting weightlifters who value body care.
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"I found this gym to be the best training environment around."
10
"I found the spa to be the best in the city."
3
"The gym's sauna and cold plunge are huge advantages."
3
Good to know
1
Memberships are available at affordable rates with no hidden fees.
2
The gym features state-of-the-art equipment suitable for all fitness levels.
3
Expect minimal wait times for machines during peak hours.
550 E 1st St, Boston, Massachusetts, United States
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