Agua Caliente County Park
Agua Caliente County Park is a developed thermal spring listed in San Diego County, California Hot Springs near Julian. Reported soak temperature is 102°F with a historical source temperature of 102°F — actual conditions may differ. Access is subject to admission fees, and clothing policy is listed as swimsuit-required — always confirm before visiting. Explore nearby springs with our GPS Springs Near Me Finder.
Seasonal Soaking & Best Time to Visit
While geothermal pool temperatures remain a constant 102°F year-round, outdoor ambient temperatures fluctuate significantly across California. Late spring through autumn offers the most comfortable road access.
Fact Sheet & Geothermal Specifications
| Reported Soak Temp | 102°F |
| Source Temp (Historical) | 102°F |
| Trail Access | Recorded coordinates — access unverified |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Reported Clothing Required |
| Pet Policy | Reported No Pets |
| Geothermal Data Reference | NOAA Thermal Springs List (1980 archive) |
| Check Land Status | California Land Manager (BLM) |
Verification & Sources
This record was verified against the following source(s):
Reviewed September 2026 · Treat all details as reported — verify before visiting · How we verify our data
Detailed Description
910-acre San Diego County park on the old Butterfield stage route at the edge of Anza-Borrego Desert — geothermal springs feed an outdoor pool, a children's pool and an indoor ~102°F therapeutic spa; 140 campsites plus cabins. Fee: $5 day-use parking + $7/person pool entry. Open ONLY Labor Day weekend-Memorial Day — closed in summer heat.
Directions & Trailhead Access
39555 Great Southern Overland Stage Route (Hwy S2), ~22 mi south of CA-78.
Frequently Asked Questions: Agua Caliente County Park
Is Agua Caliente County Park free?+
Agua Caliente County Park is a developed thermal facility near Julian that requires paid admission.
What temperature is Agua Caliente County Park?+
Agua Caliente County Park has a reported soak temperature of 102°F and a historical source temperature of 102°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Agua Caliente County Park clothing optional?+
Agua Caliente County Park is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Agua Caliente County Park?+
Agua Caliente County Park is a recorded location in San Diego County. Exact access, parking, and land status are not verified — check with the local land manager (BLM/USFS/NPS) before visiting.
Where to Stay Near Agua Caliente County Park
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Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Agua Caliente County Park? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!