Castle Hot Springs
By the HotSpringsFind editorial team · How we compile records · Reviewed September 2026
Castle Hot Springs is a resort hot spring listed near Morristown, Arizona. Reported soak temperature: 101°F. See the visit fact sheet.
Current status
Open but NOT a day-use spring — access is exclusively for registered overnight guests 18+ (no day passes, no public dining); all-inclusive stays run ~$1,250–$2,490+/night including meals, activities and 24-hour access to three cascading geothermal pools (86–106°F) on a 1,100-acre Bradshaw Mountains property reached by 7 miles of graded dirt road — SUV recommended; 2026 marks the resort's first-ever July–August summer opening.
Checked September 2026 · verified on the operator’s site · 6 sources ↓
Staying overnight?
A town stay for the wider desert region.
Wickenburg is about 21 mi from the spring (straight line).
We may earn a commission from bookings through these links, at no extra cost to you.
Before you go
- Status: Reservation or permission required — confirm via Castle Hot Springs — official FAQ (overnight guests only, 18+, no day passes/dining, 7-mile dirt road, no rideshare, no RVs).
- Cost: Reported $1 — confirm current rates before visiting.
- Getting there: Developed resort — confirm operating hours and any reservation requirement.
- Water: Reported soak temperature 101°F — always test the water before entering.
- Rules: Reported clothing required; pets reported not allowed — confirm current rules.
- Conditions: check weather, fire closures, and land-manager alerts the week you go — mountain access changes seasonally.
- Reservations/permits: Overnight reservation only — book at castlehotsprings.com or (877) 600-1137; minimum-stay rules may apply on some dates.
- Booking: Reservation required.
- Best time to go: Nov–Apr is classic season (book months ahead for winter); the new summer openings (July–Aug, added 2026) offer the lowest rates ever (~$1,390) but desert heat is extreme.
- Clothing reality: Official: swimsuits required in the communal pools — private-property resort, not clothing-optional. Spring Bungalows have private outdoor geothermal soaking tubs.
- Kids: Adults only.
- Cell service: spotty — download maps and tell someone your plan.
- Accessibility: Developed resort with guest-room soaking tubs (Spring Bungalows) as the step-free option; unpaved approach road and rocky desert terrain around pools; contact resort for ADA specifics.
- NO day passes — overnight reservation is the only way in; non-guests cannot even dine on site
- Adults only 18+ per official site (one third-party source claims 16+ — operator wins)
- Last ~7 miles of Castle Hot Springs Road are unpaved dirt — regularly maintained and passable in normal cars at slow speed, but resort recommends high-clearance/SUV
- Uber/Lyft do NOT service the resort — self-drive or book resort transfer (luxury SUV or helicopter)
- No RVs, campers, or trailers — passenger vehicles only
- All-inclusive pricing (meals, most activities, gratuities, 24-hr pool access) but alcohol, spa, and premium excursions cost extra — add-on excursions run ~$150–$300/person
- Rates from ~$1,390/night summer to $2,265–$2,490/night peak (Jan–Apr 2027 booking checks); 6.35% Yavapai County tax at checkout
- First-ever July & August opening in 2026 — resort historically closed summers; AZ residents get $150/night credit through Sept 30, 2026
- Hazard: 7 miles of dirt road — rough stretches, dust, and flash-flood wash crossings in monsoon season (Jul–Sep)
- Hazard: Remote desert valley — extreme summer heat (110°F+), no services between Lake Pleasant and the resort
- Hazard: Source water emerges at ~115–122°F — stay in the managed pools
About this spring
Historic luxury resort (est. 1896, Arizona's first wellness resort) on 1,100 acres in the Bradshaw Mountains — three geothermal pools rich in lithium and magnesium; hosted Theodore Roosevelt and the Vanderbilts. Overnight guests only — no day use. Fee: All-inclusive overnight stays only (~$1,200+/night) — NO day use. Now open year-round — first summer season in 2026.
Castle Hot Springs may refer to: Castle Hot Springs, California, an unincorporated community in Lake County, California Castle Hot Springs (Arizona), a historic resort in Arizona, located in the Hieroglyphic Mountains, north of Phoenix
Text from the Wikipedia article “Castle Hot Springs”, available under CC BY-SA.
Directions & trailhead access
5050 N Castle Hot Springs Rd, Morristown, AZ — northwest of Phoenix; remote dirt-road final approach.
Arizona geothermal context
Arizona's hot springs are products of Basin and Range crustal stretching, surfacing mostly along rugged canyon country around the Verde and Gila rivers. Many sit at the bottom of steep desert drainages where monsoon storms (July–September) can trigger flash floods. Desert heat makes winter the comfortable soaking season for most sites.
What a resort site means here
A resort spring is a commercial operation: developed pools or tubs with controlled temperatures, changing facilities, and usually day-use fees or lodging packages. Expect posted rules (swimsuits, quiet hours, age limits), staff on site, and in many cases required reservations — especially on weekends and holidays.
Best time to visit
October – April (Fall, Winter & Spring)Desert thermal zones experience high summer ambient heat. The cooler months from late autumn to early spring offer the most refreshing ambient conditions for open-air soaking.
Fact sheet
| Reported soak temp | 101°F |
|---|---|
| Source temp (historical) | 101°F |
| Trail access | Recorded coordinates — access unverified |
| Access fee | Reported $1 — verify |
| Clothing policy | Reported clothing required |
| Pet policy | Reported no pets |
| Geothermal data reference | NOAA Thermal Springs List (1980 archive) |
| Check land status | Castle Hot Springs — official FAQ (overnight guests only, 18+, no day passes/dining, 7-mile dirt road, no rideshare, no RVs) |
Castle Hot Springs FAQ
Is Castle Hot Springs open right now?
Open but NOT a day-use spring — access is exclusively for registered overnight guests 18+ (no day passes, no public dining); all-inclusive stays run ~$1,250–$2,490+/night including meals, activities and 24-hour access to three cascading geothermal pools (86–106°F) on a 1,100-acre Bradshaw Mountains property reached by 7 miles of graded dirt road — SUV recommended; 2026 marks the resort's first-ever July–August summer opening. (Status verified on the operator’s site, last checked September 2026.)
Is Castle Hot Springs free?
Castle Hot Springs is listed with reported fees near Morristown. Fees are reported; confirm admission, parking and permit costs with the site manager.
What temperature is Castle Hot Springs?
Castle Hot Springs has a reported soak temperature of 101°F and a historical source temperature of 101°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Castle Hot Springs clothing optional?
Castle Hot Springs is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Castle Hot Springs?
Castle Hot Springs is a private venue with paid public admission. Confirm current hours, fees and booking requirements with the operator before visiting.
Where to stay in Wickenburg
A town stay for the wider desert region. Castle Hot Springs is a separate resort reservation.
Wickenburg is about 21 mi from the spring (straight line).
We may earn a commission from bookings through these links, at no extra cost to you.
Sources & references
- Castle Hot Springs — official FAQ (overnight guests only, 18+, no day passes/dining, 7-mile dirt road, no rideshare, no RVs) — operator · 2026-09
- Castle Hot Springs — official homepage (overnight guests only; first-ever July/August opening 2026) — operator · 2026-09
- Castle Hot Springs — official Transportation page (7-mile dirt road regularly maintained) — operator · 2026-09
- Spa Hotel Finder — Castle Hot Springs review v9.5 (rate checks: $2,265–$2,490 peak Jan 2027, $1,390 summer; 6.35% tax; $150 AZ-resident credit through Sept 30, 2026) — community · 2026-08
- Soak Destinations — Castle Hot Springs 2026 guide (3 pools, 86–106°F, source 115°F, 200k gal/day, 1,100 acres) — community · 2026
Additional references for this record; a source link does not guarantee current conditions.
Details above were verified against the named sources on their listed dates — conditions change, so recheck before traveling. · How we verify our data · Report a correction
Your private trip notes
Saved only in this browser — not published or shared.No private notes yet
Keep access details and observations for your own planning.