Trinity Hot Springs
Trinity Hot Springs is a private thermal spring listed in Elmore County, Idaho Hot Springs near Featherville. Reported soak temperature is 108°F with a historical source temperature of 108°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 108°F year-round, outdoor ambient temperatures fluctuate significantly across Idaho. Late spring through autumn offers the most comfortable road access.
Fact Sheet & Geothermal Specifications
| Reported Soak Temp | 108°F |
| Source Temp (Historical) | 108°F |
| Trail Access | Recorded coordinates — access unverified |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Reported Clothing Required |
| Pet Policy | Reported Dog-Friendly |
| Geothermal Data Reference | NOAA Thermal Springs List (1980 archive) |
| Check Land Status | Private land — contact the owner/manager for permission |
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
Private club and retreat (former Paradise Hot Springs) on Grouse Creek near the South Fork Boise River — a large gravel-bottom outdoor pool at 90-108°F fed by spring water certified as 'Naturliches Heilwasser'; lodging, cabins and retreats. MEMBERSHIP REQUIRED even for day use. Fee: 2-hr soak $15 adult — REQUIRES annual Trinity Club membership. Membership required; may close for private events.
Directions & Trailhead Access
Featherville area, Trinity Mountain — office tours Mon/Wed/Fri-Sat; call 208-653-2123.
Frequently Asked Questions: Trinity Hot Springs
Is Trinity Hot Springs free?+
Trinity Hot Springs is a developed thermal facility near Featherville that requires paid admission.
What temperature is Trinity Hot Springs?+
Trinity Hot Springs has a reported soak temperature of 108°F and a historical source temperature of 108°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Trinity Hot Springs clothing optional?+
Trinity Hot Springs is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Trinity Hot Springs?+
Trinity Hot Springs is a recorded location in Elmore 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 Trinity Hot Springs
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Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Trinity Hot Springs? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!