Alchemy Springs

939 Post St, San Francisco, CA 94109

Modern bathhouse in Lower Nob Hill with the largest freestanding dry sauna in the U.S. (40-person capacity). Currently operating 'Sauna Garden' with outdoor sauna, cold plunge pools, thermal benches, and fire pit. Full 6,000 sq ft bathhouse opening 2026. 4.8 stars with 57 reviews. Offers 3-packs, 5-packs, and 30-day unlimited memberships.

Price: $45 for 90 minutes

Amenities: cold plunge

Gender policy: Co-ed

Clothing policy: Swimsuit required

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