
Yuan Spa
Bellevue, WA
Luxury hydrotherapy spa in downtown Bellevue with a therapeutic cedar dry sauna and mineral pools.
Bellevue, WA
The Spa and Salon at PRO Club's Bellevue flagship shares the athletic club campus. The spa offers massage, skincare, and body treatments; guests using scheduled spa services can use locker rooms that include sauna access (amenities are also used by club members, so peak times may feel busy). PRO states that spa and salon services are open to the public without a gym membership — book ahead and confirm sauna access with your appointment type.
Other spots in the same area or with a similar vibe — always double-check hours and access on the venue's site.

Bellevue, WA
Luxury hydrotherapy spa in downtown Bellevue with a therapeutic cedar dry sauna and mineral pools.

Bellevue, WA
Often 200°F+ (wood-fired — verify)
Authentic Nordic wood-fired sauna on the shores of Lake Sammamish with direct cold plunge access.

Federal Way, WA
Private hourly suites south of Seattle with redwood/cedar dry saunas and hot tubs — open until midnight daily.