52 listings
Hot Springs Open Year-Round in California
Hot springs that stay open through winter, when snow soaking is at its best. Check road conditions before you drive.
We list 52 in California, 17 of them near Desert Hot Springs: the hottest is Mi Kasa Hot Springs (up to 115°F) and the lowest listed adult price is Franklin Hot Springs ($10).
Aqua Soleil Hotel & Mineral Water Pool
A hotel on Palm Drive with a large mineral water pool at about 88F and two jetted mineral pools at about 102F and 104F. The pools are for registered guests, who may bring up to four day guests. Dogs are allowed for a fee.
Avila Hot Springs
A historic hot springs on Avila Beach Drive, two miles from the beach, where oil drillers struck an artesian hot well in 1907. Its 20-by-20-foot mineral soaking pool is about 2 feet deep and kept near 104F, beside a large heated freshwater pool with double slides. Day passes cover both pools, and the site also offers tent and RV camping.
Azure Palm Hot Springs Resort & Day Spa Oasis
A resort and day spa with a 100 by 40 ft mineral pool and four indoor and outdoor hot spas kept at about 99-104F. The Oasis Day Pass covers the pools, sauna, lounging areas and yoga studio from 9am to 7pm. Guests must be 17 or older.
Beverly Hot Springs
A Koreatown bathhouse that describes its water as 100% natural mineral hot spring water. Admission covers gender-separated hot pools, cold plunges, steam rooms and dry saunas for up to two hours, with massage and facials sold separately. A co-ed pool is listed as coming soon.
Caliente Springs Resort
A 55-and-over RV resort on Dillon Road with natural hot mineral pools and spas, including a tub at about 104F, plus a sauna. The source water rises at 115-146F. The pools are for resort guests, and no day pass is published.
Calistoga Motor Lodge and Spa
A retro-styled motor lodge at the north end of Lincoln Avenue, now part of JdV by Hyatt, with outdoor pools and a hot tub filled with mineral water from Calistoga's geothermal springs. MoonAcre Spa on site offers mud baths and massage. Day passes are sold through ResortPass.
Calistoga Spa Hot Springs
A downtown Calistoga resort built around four outdoor pools filled with geothermal mineral water from a well beneath the property, ranging from about 80 to 104°F. The covered, jetted octagonal Jet Pool is adults only. Pools are for room guests and people booking spa treatments, which include traditional volcanic ash mud baths.
Catalina Spa & RV Resort
A gated RV resort with odorless hot mineral pools and hot tubs across five swimming areas at its Lower and Upper Clubhouses. RV sites start at $45 a night. The pools are for registered guests, and an ADA pool lift is available.
Death Valley Hot Springs
A Tecopa Hot Springs Road resort with a large outdoor geothermal pool ringed by four smaller hot pools of different sizes and temperatures. Four private pools with their own showers are also offered, and everyone on the property needs a $35 guest pass, valid 9am-10pm. Lodging is in bungalows, with an RV park and tent sites.
Desert Hot Springs Spa Hotel
A mid-century hotel on Palm Drive, operating since 1950, built around a courtyard of natural hot mineral pools. It sells pool day passes for 9am-8pm and runs a cafe, bar and spa on site. The hotel's day-pass page and its FAQ disagree on price and minimum age, so confirm before visiting.
Dr. Wilkinson's Backyard Resort & Mineral Springs
Calistoga's resort and spa running since 1952 on Lincoln Avenue, with three geothermal mineral pools, one indoor and two outdoor, set at about 85, 95 and 104°F. The 104°F Hot Spring is adults only. Day visitors can buy pool passes, daybeds and cabanas through ResortPass, and the spa still offers its original mud bath, The Works.
El Morocco Inn & Spa
A small Moroccan-themed inn for adults 21 and over, with a natural mineral-water swimming pool and a large covered Jacuzzi-style spa. Day visitors can book a pass that includes two far-infrared saunas, a locker, towel and robe. There is no restaurant, and guests may bring their own food and drinks.
Esalen Institute
A retreat center on the Big Sur cliffs whose hot springs baths sit above the Pacific, fed by springs that emerge at about 119F. The baths have four communal stone tubs, individual claw-foot tubs and an upper-level tub with a lift, and they are clothing-optional. They are open only to overnight guests, and Esalen's public night-bathing reservations are currently closed.
Fairmont Sonoma Mission Inn & Spa
A large resort at Boyes Hot Springs, just north of Sonoma, built over thermal mineral springs. The adults-only Fairmont Spa has five geothermal mineral pools and a Roman-style bathhouse, while the family Main Resort Pool is also filled with naturally heated geothermal water and open year-round. Day visitors can book treatments or a spa pass through ResortPass.
Feather River Hot Springs
A small, rustic private campground and cabin site on the Feather River off Highway 70 near Twain, with two riverside tubs at 99 to 104F. Soaks are booked by text in two-hour slots, swimsuits are required, and children are not allowed at the springs. The operator has posted that the springs and all lodging are temporarily closed for medical reasons.
Fountain of Youth Spa & RV Resort
An RV resort and villa park near the Salton Sea whose signature Lobster Pot raw mineral spa runs at about 100-104F. There are also three private soaking tubs with adjustable temperatures and separate mineral steam rooms. The pools are included for registered guests.
Franklin Hot Springs
A family-run hot springs on farmland east of Paso Robles, where a 1952 oil survey struck mineral water instead. It has a large spring-fed pool of about 97F, a hot tub of about 100F and a lake for fishing and boating, all on one $10 day pass. The owners say no chemicals are added to the springs, and tent and RV camping is available.
Glen Ivy Hot Springs
A long-running adults-only day spa in Temescal Valley with 19 pools and water features, led by 104°F Mineral Baths fed by a geothermal source. Admission covers Club Mud, saunas, steam rooms, a hot and cold plunge circuit and daily classes. Reservations are required and there is no re-entry.
Golden Haven Hot Springs Spa and Resort
A family-owned spa and lodge on a residential street near downtown Calistoga, using mineral water from a geothermal aquifer beneath the property. Its gated, partly covered pool runs about 85-88°F, with two adjoining hot spas at 98-100°F and 102-104°F. There is no day use; the pool comes with a stay or any spa treatment, including shared couples mud baths.
Grover Hot Springs State Park
A California state park 4 miles west of Markleeville with a concrete hot mineral pool fed by six springs and a separate cooler swimming pool, run with a lifeguard on duty. The hot pool is kept at 102-104°F, and pool entry is sold separately from the $8 vehicle day-use fee. The park also has a forested campground, picnic area and trails to a waterfall and Burnside Lake.
Harbin Hot Springs
A rustic, clothing-optional retreat center north of Middletown run by the non-profit Heart Consciousness Church, with eight Mainside pools ranging from a very hot enclosed pool to cold plunges, plus a sauna and steam room. Visitors buy a membership and a 3-, 6- or 24-hour pass, and the property bans alcohol, drugs, phones and cameras. Rebuilding after the 2015 Valley Fire continues, with two new Mainside hotels under construction.
Hope Springs Resort
A small adults-only (21+) motel-style retreat with three pools fed by an on-site hot mineral well: an ambient swimming pool, a 92°F pool and an enclosed 104°F pool. The pools are for overnight guests only. Rooms have no TVs, and the resort asks for quiet voices and no phone calls around the pools.
Indian Springs Calistoga
A historic Calistoga resort whose Olympic-size Main Pool, built in 1913, is fed by mineral water from on-site geysers that surfaces around 230°F and is cooled in reservoirs. A smaller Adult Pool sits next door and runs about ten degrees cooler than the Main Pool. Hotel guests use the pools; day visitors need a spa booking plus a pool pass.
Jacumba Hot Springs
A hotel in the high desert town of Jacumba Hot Springs, about an hour east of San Diego, whose mineral spring water flows into its pools with no chemical treatment. Day passes cover the large outdoor Ritual Pool (96-101°F), with a limited-pass Solstice Pool and an indoor Echo Room (99-103°F) for hotel guests. Pool access is for ages 21 and over.
Keough's Hot Springs
A pool resort south of Bishop, open since 1919, where spring water is cooled by a waterfall into a large swimming pool alongside a smaller hot soaking pool. Day entry is $14 for adults. The property also has RV and tent sites and furnished canvas tent cabins, and Inyo County's visitor site notes that swimsuits are required.
Lido Palms Resort and Spa
A small inn on Tamar Drive with a 103°F outdoor hot tub, a 99°F indoor hot tub and a warm outdoor pool, all filled with mineral water pumped from the ground. Day passes cost $55 for visitors 18 and over and include the sauna, towels and robes. Swimwear is required, and rooms have full kitchens.
Meadowlark Country House and Resort
An adults-only country inn on Petrified Forest Road outside Calistoga with a mineral-water lap pool, mineral hot tub and Finnish sauna. The inn says its well water is warmed by volcanic activity; the pool is seasonally heated and not heated in winter. The pool area is clothing-optional, and day visitors can call ahead for a day or evening pass.
Mercey Hot Springs
An off-grid resort in the Little Panoche Valley, 13 miles west of I-5, where salty mineral water emerges at about 112F. Outdoor tubs run 102-106F and are clothing-optional and adults-only, while the heated swimming pool is 85-90F and needs swimsuits. Day use is by reservation from noon to 5pm, and stays range from cabins and Airstreams to RV and tent sites.
Mi Kasa Hot Springs
A small adults-only (21+), clothing-optional hotel with a natural hot springs pool, an indoor jacuzzi at about 103F and an outdoor jacuzzi at about 100F. Day passes and private tub rentals run 9am to 10pm with single entry. Leashed pets are welcome but may not enter the water.
Miracle Manor Boutique Hotel & Spa
A nine-room 1950s motel on Miracle Hill with a mineral water pool, a jacuzzi and private hot and cold mineral tubs. Day passes include pool access from 9am to 5pm, a yoga session and a locker, and reservations are required. The property is adults-only (21+) and pet-free.
Miracle Springs Resort & Spa
A hotel and spa on Palm Drive with a courtyard of eight natural hot mineral pools, which Greater Palm Springs tourism describes as 140°F water cooled to 90-104°F. Day passes ($20, 21+) are walk-in only, and visitors should bring their own towel and a lock. The Capri Italian Restaurant serves poolside.
Mount View Hotel & Spa
A 1917 art deco hotel on Lincoln Avenue in downtown Calistoga with a day spa. Its mineral whirlpool and hydrotherapy tubs use water from the spa's own geothermal well, which surfaces at about 120°F, alongside a heated pool. Details could not be confirmed on the hotel's own site.
Murrieta Hot Springs Resort
A historic hot springs resort in Murrieta with lodging and more than 20 pools fed by geothermal spring water found on the property, posted at roughly 50°F to 104°F. Most pools use untreated mineral water, while the Blue Lagoon, Oasis, Roman Spa, Vitality Plunge and indoor bathhall are treated. Day passes are sold to families, with separate adults-only areas including a terrace with a panoramic sauna.
Orr Hot Springs
A small clothing-optional resort on 27 acres at the headwaters of Big River, about 12 miles west of Ukiah on Orr Springs Road. The bathhouse has private and communal tubs, a swimming pool, sauna, steam room and cold plunge, and guests cook their own meals in a shared kitchen because no food is sold. Day use runs noon to 9pm by reservation, and there is no cell service or WiFi.
River Oaks Hot Springs Spa
A day spa in Paso Robles that rents geothermal artesian mineral tubs by the hour, either private covered rooms indoors or semi-private open-air tubs outdoors. Soaks cost $30 per person per hour, and the Sip & Soak package adds a wine-tasting flight in an outdoor tub. Massages and facials include a 30-minute indoor soak.
Roman Spa Hot Springs Resort
A downtown Calistoga hotel with three soaking pools filled with geothermal water from the resort's own wells: a large outdoor pool at about 92-96°F, an outdoor jetted hot tub at 103°F and an indoor jetted pool at 100°F. The Baths at Roman Spa offers mud baths made with geothermal water, volcanic ash and peat. Pools are soaking-only, with no diving or splash games.
Sam's Family Spa Hot Water Resort
A family-run hot-water resort and RV park on Dillon Road east of Desert Hot Springs, with four chlorine-free mineral spas, swimming and wading pools, a dry sauna and two steam rooms. The spas are drained, cleaned and refilled every morning. Day passes cost $25 on weekdays and $30 on weekends, are sold first come, first served, and kids of all ages are welcome.
Sea Mountain Nude Resort & Spa
A clothing-optional, adults-only resort for couples and women, with a heated mineral water pool, a whirlpool and a cedar sauna. Day visits run 10:30am to 5pm year-round, and couples passes start at $99. No one under 21 is allowed on the grounds.
Shoshone Village (Shoshone Inn & RV Park)
A small desert village with an inn, RV park and campground around a naturally warm mineral spring swimming pool. Inn guests use the pool free, and it sits beside the RV park and a short wetland trail through endangered pupfish and vole habitat. Shoshone is about a mile from the southeast entrance to Death Valley National Park.
Sierra Hot Springs
A nonprofit hot springs retreat on more than 600 acres outside Sierraville, about 30 minutes north of Truckee. Its four soaking areas run from the 95-96F Phoenix Baths to the 110-112F Temple Dome Hot Pool, which sits under a geodesic dome with two cold plunges, and all soaking areas are clothing optional. Every visit needs an advance reservation and at least one member in the party, and stays are in the Main Lodge, the Globe Hotel or the campground.
Sky Valley Resort
An RV resort east of Desert Hot Springs whose sulfur-free hot water supplies 12 pools and spas, including a tub at about 104F. The pools are for resort guests, and no day pass is published. Its sister property, Caliente Springs, is a 55+ resort.
Solage, Auberge Resorts Collection
A resort on the Silverado Trail whose Spa Solage Bathhouse has five geothermal pools, from a 50-55°F cold plunge and an ambient magnesium pool to a 98°F relaxation pool and two jetted pools at 102-104°F. The signature Mudslide pairs a mud treatment with a private geothermal soak. The spa is 18+; non-guests can buy a Bathhouse Access Pass.
Sycamore Mineral Springs Resort & Spa
A resort near Avila Beach built on sulfur mineral wells struck by oil prospectors in 1886. Its 24 private hillside hot tubs sit on wooden decks under sycamore and oak trees and are rented by the hour, from $25 per person on weekdays. A group lagoon with waterfalls and a mineral swimming pool are also bookable, and every guest room has its own mineral tub.
Tecopa Hot Springs & Campground
An Inyo County park in the Tecopa Valley with two bathhouses, each with separate enclosed pools for men and women, fed by artesian water of about 102F. Bathing is in the nude only, under a county code. A concessionaire took over under a 10-year agreement and sells $15 day soaking passes, plus more than 200 RV and tent sites.
The Oasis at Death Valley
A pair of hotels at Furnace Creek in Death Valley National Park, the Inn and the Ranch, each with a spring-fed swimming pool held at about 87F. The Ranch pool is open 8am-11pm to guests of both hotels, and the public can buy pool passes at the Ranch desk. The Inn's historic tiled pool is for Inn guests and sits beside a spa and poolside cafe.
The Spa at Séc-he (Agua Caliente Cultural Plaza)
A 73,000 sq ft spa in downtown Palm Springs on Séc-he, the Agua Caliente Hot Mineral Spring that the Agua Caliente Band of Cahuilla Indians has cared for over generations and still treats as one of its most important cultural resources. The day pass includes a 15-minute private mineral bath in roughly 105°F spring water, plus steam, sauna and a pool deck. It is part of the tribe's Cultural Plaza alongside the Agua Caliente Cultural Museum; guests must be 18 or older.
The Spring Resort & Spa
A small adults-only (18+) inn and day spa on Miracle Hill with three mineral pools: an enclosed soaking pool, a 104°F outdoor pool and a larger swimming pool. Day visitors get two hours in the pools and Finnish sauna with a spa treatment of 50 minutes or more. The resort can reach capacity and turn away day use on weekends and holidays.
Tuscan Springs Hotel & Spa
A 16-room adults-only (21+) boutique hotel with a large hot mineral pool and two mineral jacuzzis fed by a 350 ft well. Day visitors can use the pools and dry sauna for four hours for $50. Pool use is free with any treatment at the on-site La Bella Spa.
Two Bunch Palms
An adults-only resort on Two Bunch Palms Trail whose grounds center on a mineral-water grotto fed by a local aquifer that the resort says emerges at over 100°F. Day visitors can buy a Mineral Soak Day ($165, 9am-6pm, lunch included) or an evening soak with dinner. Guests must be 18 or older, and pets are not allowed.
UpValley Inn & Hot Springs
A Lincoln Avenue hotel, formerly a Comfort Inn, whose outdoor swimming pool and whirlpool are filled with mineral water from its own geothermal well. A cedar dry sauna and steam room are included with the pool. Non-guests can buy a day pass through ResortPass.
Vichy Springs Resort
A historic resort and country inn in the hills east of Ukiah, operating since 1854 and listed as California Historical Landmark #980. Its signature is 14 tubs of naturally carbonated mineral water at about 90F, alongside a 104F hot pool and a seasonal 25-meter swimming pool. Day visitors pay by 2-hour, 3-hour or all-day blocks and can use trails on the 700-acre reserve; bathing suits are required.
Wilbur Hot Springs
An off-grid, solar-powered hot springs hotel on Sulphur Creek in western Colusa County, surrounded by a 1,560-acre nature preserve. Untreated mineral water flows continuously through flumes in a Japanese-style Fluminarium at about 100 to 109F, and the bathing area is clothing optional and device free. Confirmed reservations are required for both day use and overnight stays, and only guests 13 and older are admitted.