Guide · October 2026
An honest note first: our Seattle directory currently has 5 verified venues, and we're still growing coverage in the city. Rather than pad a "best of" list, this guide covers every verified spot — all five offer cold plunge, and four of the five publish pricing, which is unusually transparent.
An urban Russian bathhouse with a 200°F dry sauna, steam room, cold plunge, and hot/cold soaking pools — 22 years in business, which in this industry is a credential in itself. If you want serious dry heat rather than an infrared box, this is the address. It's the only venue in our Seattle data with a steam room.
A proactive wellness studio with both infrared and traditional saunas, guided and private cold plunge, breathwork coaching, and contrast suites. The most versatile venue in the dataset — it's the only one offering both sauna types plus guided cold exposure. Memberships, credit packs, and single sessions are all on their site.
A private outdoor sauna (170–190°F) and cold plunge (45–55°F) booked by the hour — self-paced contrast for up to four people. A private 60-minute session starts at $35 per person. The bring-your-own-group format makes it the best per-person value in our Seattle data if you can fill the four spots.
Described on their site as Seattle's original infrared sauna studio, now with cold plunge, red light therapy, and contrast therapy across several locations. The Wallingford location is the one in our directory. Pricing is published: 2 sessions a month for $88, or unlimited sauna at $199/month.
60-minute Fire & Ice contrast sessions in a private suite: a full-spectrum infrared sauna plus a 45–50°F cold plunge. Sessions are $79, with a $159 intro 3-pack. The private-suite format at a published price — no membership required to try it.
Cold plunge is the common thread. All five verified Seattle venues offer cold plunge — unusual breadth for a five-venue dataset. Contrast therapy is well covered; steam is not (only Banya 5).
Pricing is published. Four of the five venues list prices on their sites — compare the $35/person group session at 815 Refresh against the $79 private suite at Float Seattle before booking.
Coverage is growing. Five venues doesn't cover a metro this size. If you know a Seattle sauna spot we've missed — especially on the Eastside or south end — tell us about it.
From published pricing: 815 Refresh starts at $35 per person for a private 60-minute session (up to 4 guests), Float Seattle's contrast suite is $79 ($159 intro 3-pack), and City Sweats runs $88/month for two sessions or $199/month unlimited. Banya 5 doesn't publish pricing.
Yes — Banya 5 in South Lake Union, an urban Russian bathhouse with a 200°F dry sauna, steam room, cold plunge, and soaking pools, in business for 22 years.
Four of our five venues offer it: Space B.A.R. (guided or private), 815 Refresh (private outdoor, hourly), City Sweats, and Float Seattle (private 60-minute suite). Every one of them pairs heat with a genuine cold plunge.
These picks cover all 5 verified sauna listings in our Seattle directory — each venue was checked against its official website and an active map listing before publication. Venues are grouped by experience, not ranked; every attribute above traces to the venue's directory entry. See our research for how we verify listings.