The Altar
Manhattan, New York City
A sauna and recovery club in the Flatiron District whose Atrium centers on a 50-person communal sauna and a cold plunge, with guided or self-guided sessions bookable without membership.
More about The Altar
The Atrium is the social side of The Altar: a large sauna for about 50 people and a cold plunge area, used in guided 75-minute classes or on your own. Sessions are booked by appointment.
A separate area called The Practice offers paid recovery services such as IV drips, red light, compression and hyperbaric oxygen. The entrance is on West 17th Street.
At a glance
The Altar has a Finnish sauna, plus a cold plunge tub. A session costs $65. Booking required.
- Sauna
- Finnish
- Cold plunge
- Yes
- Session
- $65
Sauna
- Finnish (dry)Temp not listed
Cold plunge
- Cold plunge tubTemp not listed
Before you go
- Booking
- Required
Atrium pass covering the sauna and cold plunge; guided classes run 75 minutes. Entrance on West 17th Street. Recovery treatments are priced separately. Prices checked October 2026.
Getting there
122 Fifth Ave, New York, NY
Frequently asked questions
How much does The Altar cost?
A session at The Altar costs $65 (checked October 2026).
What kind of sauna does The Altar have?
The Altar has a finnish (dry).
Does The Altar have a cold plunge?
Yes. The Altar has a cold plunge tub.
Do you need to book The Altar in advance?
Yes, The Altar requires a booking.
Nearby
Othership Flatiron
0.2 miles away
185°F32°FBathhouse Flatiron
0.2 miles away
195°F45°FPerspire Sauna Studio Flatiron
0.3 miles away
Heat45°FSpace for Wellness
0.4 miles away
The SPA Club
0.7 miles away
Sources
- Othership: Best Bathhouses NYC 2026 Rankings, checked October 2026
- Culture of Bathing (Substack): Next wave of NYC bathhouses, checked October 2026
- goop: The Altar, checked October 2026
We last confirmed The Altar is open in October 2026. Spotted something out of date?