Othership Flatiron

Othership Flatiron is a social sauna and cold-plunge studio where music, guided breathwork and shared rituals replace the usual silent spa routine. Warm wood, atmospheric lighting and a communal lounge make the visit feel like a small group experience, whether you arrive alone or with friends.

Choose a guided class for a structured journey through heat, cold and breathing, or Free Flow to explore the sauna and ice baths at your own pace with staff support available. Standard sessions run about 75 minutes; evening socials last longer and put more emphasis on conversation. Allow around two hours for a standard visit, including changing and time to settle afterward.

Reserve the Flatiron studio at 23 West 20th Street and check the session description before choosing: an energizing class and a quieter Free Flow create quite different moods. Guests must be 18 or older. Bring a swimsuit and a non-glass water bottle; towels, lockers and shower products are supplied. Leave your phone in the locker, follow the guide's instructions and ask staff about access needs before booking.