Visit the hottest spa in San Francisco, literally.
Archimedes is the hottest place to hang out in San Francisco — quite literally. The warmest saunas reach up to 220 degrees Fahrenheit, but a healing heat is just one cool aspect of this five-story, waterfront retreat. The facility features 17 treatment rooms, two Russian saunas, hot tubs, a Turkish steam room, Finnish dry sauna, swimming pool, a cold plunge to help rev up circulation and private bath tubs. For the ultimate toasty treatment in the Russian sauna, test out the Venik Platza — aka the Russian Hot Massage. It includes a pat-down with a bundle of fragrant tree branches and leaves by a platza master. This detoxifying service provides countless mind-body benefits, including aromatherapy and exfoliation. Fun post-pampering pit stops include a TV lounge, bar and cafe, vanity room and rooftop terrace.