San Francisco’s sauna scene is having a moment that feels very on-brand for the city — floating saunas on Richardson Bay, a mobile cedar sauna on a trailer popping up at creeks and parties, the largest freestanding sauna in the US hiding in Lower Nob Hill, and a 50-year-old Japanese bathhouse in Japantown with a strict no-talking policy. The OG is Archimedes Banya, a four-story Russian bathhouse on the shores of the Bay that’s been running since 2012. But the new wave is moving fast: waterfront barrel saunas, Aufguss rituals, guided cold plunge sessions, and a growing belief that the city’s famously cold, foggy climate is actually the perfect backdrop for contrast therapy. Here’s where to go.
Archimedes Banya Bayview · banyasf.com
What they’ve got: Two Russian saunas (22,000-lb imported stoves, up to 210°F), dry cedar sauna (220°F), Turkish steam room, cold plunge pool, jacuzzi, two soaking tubs, rooftop deck, restaurant and bar
The details: The Bay Area’s original social sauna and still the most complete thermal experience in the city. Four stories of heat, cold, and everything in between. The two Russian saunas each house a 22,000-pound imported stove that pushes air up to 210°F. The dry cedar sauna goes even higher — 220°F. There’s also a Turkish steam room, a cold plunge, a jacuzzi, soaking tubs, and a rooftop deck overlooking the Bay. Clothing optional, co-ed, all ages. The venik platza is the signature treatment — getting rhythmically swatted with aromatic bundles of wet oak or eucalyptus leaves in the heat. Free Aufguss aromatherapy sessions happen on a regular schedule. The rooftop patio and full-service restaurant (borscht, pierogies, smoked fish) make this an all-day destination. Reviews are mixed on cleanliness — the facilities have character, but it’s not a polished luxury spa. The heat, though, is the real thing.
Temps & Pricing: Russian saunas up to 210°F. Cedar sauna up to 220°F. Day pass around $70 for 3.5 hours. Platza and other treatments extra. 748 Innes Ave.
Fjord Sausalito (Richardson Bay) · thisisfjord.com
What they’ve got: Two floating Finnish saunas (190°F), Bay cold plunge via dock ladders, lounge deck
The details: A floating sauna experience on Richardson Bay in Sausalito, with picture windows providing sweeping views of the water and Marin headlands. Two traditional Finnish saunas sit on a platform, each holding up to 6 people, kept at 190°F with löyly (steam from water poured over hot stones) encouraged. The cold plunge is the Bay itself — ladders on the dock let you climb down into water that sits around 53°F. The cofounders left marketing and tech careers to build this, and the result feels like a West Coast take on Scandinavian sauna culture. Shared sessions (up to 8 people, 90 minutes) run mornings; private sessions (up to 6, 2 hours) take over afternoons and evenings. Bookings release weekly and sell out. If you can only do one sauna in the Bay Area, this is a strong argument.
Temps & Pricing: Saunas at 190°F. Bay plunge around 50-55°F depending on season. Shared sessions 90 min. Private sessions 2 hours. Check their site for pricing — bookings release Sundays at 9am. 2310 Marinship Way, Sausalito.
Alchemy Springs Lower Nob Hill · Check their site for current booking
What they’ve got: Largest freestanding sauna in the US (40-person, circular, tiered seating), cold plunge tubs, rain showers, thermal benches, fire pit, 2,500 sq ft garden
The details: Still technically in stealth mode but already one of the most exciting wellness spaces in the city. The centerpiece is a 40-person circular sauna with tiered seating and immersive lighting — reportedly the largest freestanding sauna in the US. It’s set in a 2,500-square-foot garden with a fire pit, cold plunge tubs, rain showers, and thermal benches. Programming rotates through contrast therapy sessions (guided sauna, cold plunge, breathwork), sound baths, yoga, and even matchmaking events. Long-term plans include a second 200°F sauna, a greenhouse lounge, and a tea bar. The founders see it as a “third space” beyond work, home, and coffee shops. The garden alone is worth the visit. This is the one to watch in SF.
Temps & Pricing: Check their site for current session types, pricing, and availability.
Dogpatch Paddle Sauna Dogpatch (Crane Cove Park) · dogpatchpaddle.com/sauna
What they’ve got: Barrel sauna (180-200°F), cold plunge tub (~40°F), optional Bay plunge, outdoor patio
The details: The best deal in SF’s sauna scene. A waterfront barrel sauna at Crane Cove Park that started as a side hustle to a kayak and paddleboard rental business. The four-person sauna hits 180-200°F, and there’s a cold plunge tub maintained around 40°F — or you can walk to the Bay and plunge there. Adirondack chairs on the patio for resting between rounds. Sessions are one hour, enough for 2-3 hot-cold cycles. Thursday night sessions are expanding to include breathwork, sound baths, and guided meditation alongside the sauna. Public sessions (shared, up to 4) start at $25. Private sessions available. Memberships start at $75/month for unlimited sauna, $99/month with paddle gear included. No pretense, no luxury markup — just a barrel sauna by the water.
Temps & Pricing: Sauna 180-200°F. Cold plunge ~40°F. Public sessions from $25/hour. Private from $100. Memberships from $75/month. Crane Cove Park, 701 Illinois St.
Kabuki Springs & Spa Japantown · kabukisprings.com
What they’ve got: Cedar dry sauna (104°F), steam room, hot pools, cold plunge, communal bathing area
The details: A Japantown institution since 1968 and the largest urban Japanese bathhouse in the US. The vibe is silence — strictly unplugged, no talking, no phones. Hot pools, a cold plunge, a steam room, and a cedar dry sauna in a serene, low-lit environment with cucumber slices, salt scrubs, cool towels, and hot tea available between rounds. The dry sauna runs cooler than most on this list at 104°F, which makes it more of a gentle, sustained heat than an intense Finnish blast. Gender-separated most days (clothing optional); Tuesday is co-ed (swimsuits required). No spa treatment required for bathing access, which sets it apart from many upscale spots. This is where you go when you want to be quiet, be present, and soak for two hours without anyone trying to sell you a membership.
Temps & Pricing: Dry sauna 104°F. Cold plunge available. $45 for 150-minute session. Reservations required. 1750 Geary Blvd.
Wanna Sauna Mobile (pops up across the Bay Area) · Find them on Instagram @wannasauna
What they’ve got: Wood-fired mobile cedar sauna (up to 212°F), Himalayan salt bar with color-shifting light, ladle-and-bucket löyly setup
The details: The Bay Area’s best mobile sauna. A cedar sauna mounted on a trailer, wood-fired and capable of hitting 212°F, that pops up at creeks, pools, backyards, and parties across the region. Seats up to 10 and glows from within thanks to a color-shifting Himalayan salt bar. Classic Finnish ladle-and-bucket löyly setup so you can summon your own steam. The mobility is the whole point — the sauna goes where the water is, whether that’s a creek in Marin or a pool party in the East Bay. Rentals start at $299 for bringing the sauna to your own spot. Follow them for public pop-up schedules.
Temps & Pricing: Sauna up to 212°F. Private rentals from $299. Public pop-ups priced per event. Follow on Instagram for schedule.
Onsen SF Tenderloin · onsensf.com
What they’ve got: Redwood sauna, steam room, cold plunge rain shower, 104°F soaking pool (15-person), herbal tea on tap
The details: A recently reopened 3,200-square-foot Japanese-inspired bathhouse in the Tenderloin. The redwood sauna, steam room, and cold plunge rain shower provide the contrast therapy circuit, and the centerpiece is a 15-person soaking pool at 104°F. Robes, towels, sandals, and quality bath products are included with admission. Herbal tea on tap. Gender-specific sessions are clothing optional; co-ed sessions are clothed. Private rentals available, including a projector for movie nights. A 25-seat restaurant with yakitori, sashimi, and bento boxes is set to open. The location in the Tenderloin might give some people pause, but once you’re inside, the urban oasis thing is real.
Temps & Pricing: Soaking pool 104°F. Sauna and steam room temps vary. Check their site for current admission and session pricing. 466 Eddy St.
Honorable Mentions
Perspire Sauna Studio — Multiple Bay Area locations. Full-spectrum infrared saunas with red light therapy in private studios. The franchise option for people who want consistent infrared sessions close to home.
Infrared SF — Infrared sauna (120-140°F) and cold plunge in a private setting. Lower heat than traditional saunas but more targeted. Good for the infrared-curious.
Reboot Float Spa — Fire & Ice sessions: private room with infrared or traditional steam sauna plus cold plunge for 45 minutes of contrast therapy. Also offers float tanks for stacking modalities.
Worthy Self-Care Studio (Berkeley) — Infrared sauna, cold plunge with a certified cold coach, LED therapy, and lymphatic compression. The guided cold plunge with breathwork and intention-setting makes this standout for beginners.
Traveler Surf Club (Pacifica) — A cedar sauna open to all at a surf club. Post-surf contrast therapy with ocean views. About 20 minutes south of SF.
Go Sauna (Oakland) — Mobile on-demand steam parties. Bring the sauna to your event.
SF Sauna Rental — Sauna units loaned to apartment dwellers. Yes, really. Peak San Francisco.
Dial In Your Session
San Francisco’s thermal scene runs from 104°F Japanese bathhouse soaks to 220°F Russian banya blasts, from 40°F commercial plunge tubs to 53°F Bay water. A gentle soak at Kabuki and a cedar sauna session at Archimedes are completely different prescriptions.
Curious how those temperature and modality differences change what your body actually gets? Run your setup through the TempRx calculator and see.
Know a Bay Area sauna or cold plunge spot we missed? Drop it in the comments and we’ll check it out.