SWTHZ South Boston

SWTHZ South Boston in Boston, Massachusetts is a luxury private contrast therapy studio offering infrared saunas paired with invigorating 48-55°F cold plunges year-round for powerful recovery and wellness. Guests alternate between sauna heat and crisp cold immersion to reduce inflammation, improve circulation, and sharpen mental focus in elegant private suites. This group-friendly facility accommodates typical groups of 1-2 people with vitamin C showers and modern amenities. Pricing ranges from $50 intro sessions to $499 for packs and memberships. Located at 467 West Broadway, South Boston, Massachusetts 02127 , bring swimwear while towels are provided. Flexible hours support consistent wellness routines for Boston, Massachusetts residents seeking premium recovery.