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Treatments
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Staff & Service
Experience
Value for Money
Spa Facilities
- Beauty Services
- Couples Treatments
- Fitness Center
- Full-Service Spa
- Hot Tub/Jacuzzi
- Pool Facilities
- Sauna
- Steam Room
- Wellness Programs
Hotel Facilities
- Air Conditioning
- Bar
- Bike Rentals
- Concierge Service
- Free Parking
- Garden Areas
- Pets Allowed
- Pickleball
- Restaurant
- Valet Parking
- WIFI
Pricing & Availability
About
Calistoga has bathed in geothermal water since the 1860s; Solage, opened in 2007, is what happened when Auberge pointed luxury money at the aquifer. The 89-bungalow campus turned the town’s motel-court mud-bath tradition into a resort category, and it remains the version every competitor gets measured against.
The Spa, Specifically
Spa Solage spans 20,000 sq ft and was rebuilt in 2021 by TLEE Spas around the Bathhouse: five geothermal pools, ranging from a cold plunge to 104°F, drawn from wells on the property, with a sauna, steam, and a coed relaxation room alongside. It’s one of Calistoga’s most complete geothermal bathhouses, and a polished introduction to hot springs experiences across America.
The Mudslide is the luxury remake of Calistoga’s traditional mud bath, playful rather than clinical and the market’s only custom-blend mud format. A mudtender mixes volcanic ash mud to your preference at the Mud Bar; you apply it, soak it off geothermally, then finish in a zero-gravity Soundchair under headphones. Couples book it as a date; recent guests report paying $500 or more for two. Massages run $300–$362 for 60 minutes before the 20% service charge that lands on every treatment.
Access is where attention pays: the spa is 18+ throughout, non-resort guests pay a $50 Bathhouse fee even with a 60-minute treatment booked, and midweek outside bookings add a $35 surcharge. A day pass bundles facility access with a $300 wellness credit, blackout dates permitting. Everything here is deliberate, including the toll booth at each door.
Who’s Right, Who’s Wrong
Book Solage for the full Calistoga fantasy executed at scale: mud, geothermal water, cruiser bikes between bungalows, a dog on the patio, and a Michelin-starred Solbar dinner in resort-casual clothes. Couples and friend-pairs who want their spa day playful get the valley’s best version of it.
Book elsewhere if fee friction ruins a stay; the $75 resort fee and stacked spa charges read as nickel-and-diming at $1,500 weekends, or if you want hushed, formal Five-Star polish, that product lives at Meadowood. Families note: kids are welcome on property, never in the spa.
Where It Sits in the Market
Against Meadowood, the Napa benchmark, the trade is clean: Solage wins the facilities contest outright, five geothermal pools against mineral soaking pools, 20,000 sq ft against 14,000, while Meadowood wins on treatment-room format, service consistency, and fee honesty.
Four Seasons’ Spa Talisa up the road runs the same geothermal story on a smaller scale, with shakier service reviews. Indian Springs undercuts everyone on mud authenticity and price, without the luxury wrapper. Solage is the valley’s hardware leader and its most-gated spa in the same breath; no competitor holds both titles.
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What Guests Are Saying
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Location
Guest Experiences
Frequently Asked Questions:
Where is Solage, and how far is the airport?
Solage is at 755 Silverado Trail in Calistoga, at Napa Valley's northern end, a mile from downtown Calistoga. San Francisco International is about 85 miles and two hours by car; Santa Rosa's Charles M. Schulz airport is roughly 35 minutes. A car is essential this far up-valley.
Can non-guests use Spa Solage and the Bathhouse?
Yes, at a price. Non-resort guests booking a 60- or 90-minute treatment pay a $50-per-person Bathhouse access fee on top, and massage, facial, or Mudslide bookings carry an additional $35 non-resort fee Monday–Thursday. A separate day pass bundles facility access with a $300 wellness credit, subject to blackout dates around peak periods.
Is there an age minimum at the spa?
Yes — Spa Solage and the Bathhouse are 18 and over, resort guests included. Calistoga's standard treatment-spa age gate applies here with no exceptions for accompanied teens.
What exactly is the Mudslide?
Solage's signature three-part ritual: "the mud," blended to your preference by a mudtender at the Mud Bar and self-applied; "the waters," a geothermal soak; and "the rest," a zero-gravity Soundchair session with headphone sound therapy. It is the luxury remake of Calistoga's traditional mud bath — playful rather than clinical, and not suitable during pregnancy.
How much do spa treatments cost?
Massages run $300–$362 for 60 minutes and $450–$518 for 90, with non-resort guests at the top of each band. Solage does not publish a standalone Mudslide price on the current menu; recent guests report couples sessions above $500. A 20% service charge lands on top of listed prices.
Is gratuity added to spa services?
Yes. Spa Solage adds a 20% service charge automatically to treatment prices — the opposite model to Meadowood, where the listed price already contains it. Budget accordingly: a $362 massage bills at $434 before extras.
Does Solage charge a resort fee?
Yes — $75 per room, per night; no Napa Valley competitor discloses a higher one. The partial offset: valet and self-parking are both complimentary, which is not the norm at this tier.
What is the Bathhouse?
The core of the spa's 2021 TLEE-designed rebuild: five geothermal pools running from cold plunge to 104°F, fed by wells on the property, plus sauna and steam room. Access comes with treatments (plus the $50 fee for non-resort guests) rather than as an open amenity.
Is Solage dog-friendly?
Yes — conspicuously so. Dogs are welcome across the bungalow grounds, and guest reviews consistently name it the valley's easiest luxury stay with a dog. The spa and Bathhouse are the exception.
Is Solage family-friendly?
For the resort, yes; for the spa, no. Families use the pool and bikes comfortably, but the entire spa operation — Bathhouse included — is 18+, so parents trade off supervision time. Couples remain the core guest mix.
When is Solage cheapest?
December through February, when entry rates fall to the $600s midweek. Harvest (August–October) is peak, with weekend rates from $1,100 to $1,900+. Mud-and-stay packages have historically required two-night minimums — check terms before anchoring a trip to one.
Is the Mudslide worth the money?
For most guests, yes — it is the thing Solage does that nobody else can, and couples call it more fun than a standard massage. The dissent is worth hearing: a vocal minority calls the self-applied format "do-it-yourself" at a premium price. If you want hands-on pampering end to end, book a massage instead.
How does Solage compare to Indian Springs for a mud bath?
Solage sells the modern luxury version — custom-blended mud, geothermal soak, sound therapy, Michelin-starred dinner afterward. Indian Springs sells the historic one: 100% volcanic ash dug on its own property, in concrete tubs used since the Sam Brannan era. Pick Solage for polish and privacy, Indian Springs for authenticity per dollar.
How This Review Works
Every SpaRator score is built the same way: six equally weighted categories, scored from more than 40 documented data points per property through independent spa and hotel facility research and analysis of thousands of verified guest reviews, then averaged, never hand-tuned. The result is a consistent, comparable rating across every property we cover. How SpaRator works
Reviewed by James Sinclair, founder of Spa Hotel Finder and creator of the SpaRator methodology. This review reflects synthesized editorial analysis, not a first-hand visit.
Last updated September 2026
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