Onsen a Japanese inspired communal bathhouse


3:30p - 5:30p: Men Only/Bathing Suit Optional
5:45p - 10p: Coed/Bathing Suit Required
3:30p - 5:30p: Women Only / Bathing Suit Optional
5:30p - 10p: Coed/Bathing Suit Required
3:30p - 10p:
Coed/Bathing Suit Required
10a - 10p:
Coed/Bathing Suit Required
10a - 10p: Coed/Bathing Suit Required
Monday/Tuesday: Closed



Communal bath - $38 (1 hr 45 min)

*Please note: a dinner reservation is made separately from a bathhouse reservation.

**We ask for prepayment to reserve the bath and we have a 24 hour cancellation policy. Please call (415) 441-4987 at least 24 hours prior to your reservation to cancel or reschedule your appointment. No refunds on cancellations or no-shows within 24 hours.


Movie Night at Onsen communal bathhouse

Special Hours:
Men's Only Soak         $28            Wednesdays    3:30p-5:30p
Women's Only Soak  $28            Thursdays        3:30p-5:30p
Early Soak                    $23            Saturday - Sunday       10:00a-11:00a
Short Film Series $38 Wednesdays 8p-10p
Bath and Bento $55 Saturday 11:15a - 1:00p

Our short film series changes monthly and each series is inspired by one of the Five Elements in Eastern Philosophy.
Short Film Schedule:
November: Wood
December: Metal
January: Earth
February: Water
March: Fire

Please visit our reservation page here to purchase GIFT CARDS.

For private parties, please contact Info@onsensf.com

*Looking for a unique experience to host for your next big event or intimate family celebration? Read more about our event offerings by clicking here.


Onsen a Japanese inspired communal bathhouse

1. A bathing suit is required on co-ed days, if you forget, we do have suits for purchase.
2. A photo ID is required to enter the bath house.
3. Please turn off your cell phone. Cell phones are not permitted in the communal bath.
4. In the bathing area, shower first, before entering the steam, sauna, or bath.
5. Children under 18 are not permitted in the bathing area.
6. Pregnant Women should seek the advice of their physician before booking a soak.
7. Outside food and beverages are not allowed in the communal bathing space.
8. Due to our intimate space we strongly discourage groups of 6 or more guests booking the communal bathhouse, please inquire about private bookings.

We have a body-positive and accepting environment, respect your fellow bather and help us to create a safe and welcoming environment for guests of all gender, race and body types.


Sauna and Soaking pool at Onsen

The bathing ritual in Japan is deeply ingrained in their society, with the idea that a daily soak will cleanse and restore body and soul. 

Inspired by Japanese bathing culture, our intimate space provides a restful environment to escape from daily routines. We are more akin to a Japanese sento, where neighbors soak together, chat about what's going on in their lives and take space for themselves to enjoy the restorative quality of soaking in a hot water bath. We invite people to be social but respectful. Please feel free to talk with your friends and fellow bather but thoughtful of others enjoying the space along with you. Every visit will be different because of the social nature of our experience, weekends are busy and more vibrant while Women's and Men's hours can feel more serene. Our sento is intimate and we want everyone to enjoy their time with us.

Our space has a 104 degree communal tub and our other amenities include: a redwood sauna, steam room, custom overhead cold plunge and western style showers. Complimentary bath products and hot tea are included in the soaking experience. We also provide a locker, towel, robe and compostable bag for your wet swim suit.