Fairmont Sonoma Mission Inn & Spa Geothermal Mineral Springs at Sonoma Mission Inn & Spa

Geothermal Springs of Sonoma Mission Inn & Spa

Fairmont Sonoma Mission Inn & Spa’s enviable location atop an ancient thermal mineral spring makes this a spectacularly unique destination, boasting 5 naturally-heated geothermal mineral pools for year-round enjoyment. Soak up the sun poolside under a private cabana and discover total bliss at Sonoma’s premier wellness resort.


Our resort pool is the perfect place to soak up that California sunshine after a long afternoon of wine tasting. Grab a bite to eat or enjoy a delicious craft cocktail at the iconic Water Tower Bar, and live the ultimate resort life at a semi-private poolside cabana. The main pool is open exclusively for Resort Guests, however Day Passes are available via ResortPass. Click here to reserve your Cabana.

Main Pool Hours | 9am - 10pm daily


The Watsu Pool at the Fairmont Spa is naturally heated to 98 degrees, providing proven health benefits for total relaxation. Float on your back and discover soothing spa sounds under the surface of the water.


The Spa Pool is nestled under towering redwoods at Fairmont Spa, surrounded by luxurious lounge seating, private cabanas and semi-private daybeds.


Featuring an exfoliating shower, two mineral water soaking pools, soothing Aromatherapy steam room, Halotherapy sauna and cool down showers, guests are encouraged to Take the Waters and discover full-body wellness at this traditional Roman-style Bathhouse. 

Our spa pools and hot tub are open year-round for guests 18 years and older. Food and beverage pool service is offered seasonally in the warm weather months.

Spa Hours | 9am - 6pm daily 

Resort Guests: $49 daily charge per person, Non-Resort Guests: $149 daily charge per person*

 *This fee is waived for non-resort guests scheduling Spa services Monday – Thursday (excluding holidays; based on availability; blackout dates may apply) which must meet the minimum service value from $209 - $345. Advanced reservations are required. Weekend services (Friday – Sunday) hold a Spa access charge of $59 in addition to the service price; this will be added at check out.