Spas with sauna in Washington

Seattle, Washington

A private floating bathhouse on Seattle's Lake Union, booked out entirely for one group of up to 12 for sauna, cold plunge and hot tub rounds.

Seattle, Washington

Neighborhood day spa in Madison Valley offering massage, sauna and float sessions by appointment, no walk-ins or day passes.

Seattle, Washington

A reservation-only social wellness sauna spa in Renton (serving the Seattle area) with a thermal pool, cold plunge, sauna and steam room, day passes from $75.