Onsen

What to know

Onsen is a Japanese-inspired communal bathhouse and urban oasis located at 466 Eddy Street in San Francisco's Tenderloin neighborhood. Founded by husband-and-wife team Sunny Simmons and Caroline Smith, the facility occupies a space that was formerly an auto body shop, now transformed into an open space filled with natural light and greenery. Visitors can rejuvenate themselves in a soaking pool, a dry sauna, and a steam room. To ensure a seamless experience, the bathhouse provides guests with robes, towels, and sandals. Lockers with keys are available for personal belongings, allowing visitors to arrive with minimal preparation. Beyond the baths, Onsen operates a Japanese-inspired restaurant serving seasonal cuisine, sake, and tea. The dining experience is designed to follow time in the baths, with a structured, multi-course menu that is California-driven and comforting. Dinner is served Thursday through Sunday, though the restaurant cannot accommodate parties larger than four people. For those seeking further wellness, the facility also offers massage and acupuncture services. The bathhouse is restricted to guests 18 years and older, maintaining a quiet, adult-oriented environment for relaxation and connection.

Visitor tips

• Reserve your visit in advance as reservations are recommended.
• If you are driving, a parking garage is available across the street at 469 Eddy Street for approximately $15-$20.
• Plan your dinner for Thursday through Sunday to enjoy the multi-course seasonal menu.
• Remember that the facility is restricted to guests 18 years and older.

Nearby context

Located on Eddy Street in the Tenderloin, Onsen provides a stark, calming contrast to the bustling and gritty urban environment of the surrounding neighborhood.