Mercey Hot Springs Resort
Mercey Hot Springs Resort is a resort thermal spring listed in Fresno County, California Hot Springs near Firebaugh. Reported soak temperature is 104°F with a historical source temperature of 104°F — actual conditions may differ. Access is subject to admission fees, and clothing policy is listed as clothing-optional — 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 104°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 | 104°F |
| Source Temp (Historical) | 104°F |
| Trail Access | Recorded coordinates — access unverified |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Reported Clothing-Optional |
| 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
Off-grid eco resort in the Little Panoche Valley ~13 mi west of I-5 — ~20 therapeutic soaking tubs at 102-106°F plus a geothermally heated swimming pool; cabins, RV sites and camping on springs shown to settler John Merci in 1848. Fee: Day use ~$50 noon-5pm by reservation. Remote; clothing-optional; day-use window 12-5pm by reservation.
Directions & Trailhead Access
62964 Little Panoche Rd — I-5 exit 379 then 13 mi west.
Frequently Asked Questions: Mercey Hot Springs Resort
Is Mercey Hot Springs Resort free?+
Mercey Hot Springs Resort is a developed thermal facility near Firebaugh that requires paid admission.
What temperature is Mercey Hot Springs Resort?+
Mercey Hot Springs Resort has a reported soak temperature of 104°F and a historical source temperature of 104°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Mercey Hot Springs Resort clothing optional?+
Mercey Hot Springs Resort is listed as traditionally clothing-optional in directory records. Confirm current rules before visiting, as policies change.
How do you access Mercey Hot Springs Resort?+
Mercey Hot Springs Resort is a recorded location in Fresno 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 Mercey Hot Springs Resort
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Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Mercey Hot Springs Resort? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!