Alchemy Springs

Day Spa

5.0 (1)

About This Sauna

Luxury social spa with a 40‑person cedar sauna, cold plunges, outdoor showers, fire pit, events. Co‑ed, swimsuits required.

180°F

Sauna Temperature

Steam Room

Cold Plunge

Coed

Hot Tub

Massage

Infrared Sauna

939 Post St, San Francisco, CA 94109

(415) 964-0336

San Francisco

2-hour Sauna Garden session ~$55

📅

Monday8:00 AM - 10:00 PM

Tuesday8:00 AM - 10:00 PM

Wednesday8:00 AM - 10:00 PM

Thursday8:00 AM - 11:00 PM

Friday8:00 AM - 11:59 PM

Saturday8:00 AM - 11:59 PM

Sunday8:00 AM - Closed

Power Reviewer

November 10, 2025

The back patio space is amazing, you can spend the whole day here just cycling between the enormous sauna and cold plunge.

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