Von Sauna is Washington's first public floating sauna, moored at the marina at Carillon Point on Lake Washington in Kirkland. Two floating hot rooms seat 18 total guests and are heated to a true dry Finnish temperature. Social sessions run 75 minutes at $40/person, with the cold plunge available directly into Lake Washington. The season runs October through May.
Other spots in the same area or with a similar vibe — always double-check hours and access on the venue's site.
Kirkland, WA
The Village at Totem Lake branch of Yuan Spa — hydrotherapy circuit with cedar sauna, pools, steam, and cold plunge.
Green Lake, WA
Private outdoor sauna and cold plunge near Green Lake — 60-minute group bookings, self-guided sessions.
Bellevue, WA
Often 200°F+ (wood-fired — verify)
Authentic Nordic wood-fired sauna on the shores of Lake Sammamish with direct cold plunge access.