Alchemy Springs & Sauna Garden SF

The backyard Sauna Garden features a large event sauna that seats up to 40 people with immersive sound and lighting, two cold plunges, an outdoor shower, thermal benches, a fire pit, and lounge areas. It is a preview of the full Alchemy Springs bathhouse and social wellness space opening in 2026.

Visits run as reserved sessions booked through the Momence platform. Passes are sold in packs: an intro 3-pass pack, a 5-pass pack, and a 10-pass pack. HSA/FSA cards are accepted via Flex. Specific prices are not published on the site.

Alchemy Springs & Sauna Garden is at 939 Post Street, San Francisco, CA 94109, in a central part of the city near Lower Nob Hill.

The Sauna Garden runs on limited hours with session-based access rather than all-day drop-in, typically evening sessions midweek and daytime hours on the weekend. Because times can change, check the current schedule when booking through Momence.

It pairs sustained sauna heat with two cold plunges for a hot-cold contrast recovery routine, plus an outdoor shower, thermal benches, and a fire pit to warm up between rounds, all in a social garden setting.