Roystone Hot Springs
Roystone Hot Springs is a private thermal spring listed in Gem County, Idaho Hot Springs near Sweet. 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 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 104°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 | 104°F |
| Source Temp (Historical) | 104°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 | 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
Family-owned resort in Sweet on Hwy 52 (~13 mi NE of Emmett) — a covered 50-ft pool at 95-99°F reserved EXCLUSIVELY for your group per session, plus a 104°F jetted hot tub; source ~143°F. RV park and event center. Reservation mandatory. Fee: Private group sessions only: pool $53-85/1.5hr (10 ppl incl), tub $25-43/hr — no walk-ins. No walk-ins — pre-booked sessions only.
Directions & Trailhead Access
Hwy 52 in Sweet Valley, ~13 mi NE of Emmett / ~35 mi NE of Boise.
Frequently Asked Questions: Roystone Hot Springs
Is Roystone Hot Springs free?+
Roystone Hot Springs is a developed thermal facility near Sweet that requires paid admission.
What temperature is Roystone Hot Springs?+
Roystone Hot Springs 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 Roystone Hot Springs clothing optional?+
Roystone Hot Springs is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Roystone Hot Springs?+
Roystone Hot Springs is a recorded location in Gem 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 Roystone Hot Springs
Looking for accommodations near Sweet, Idaho? Select your travel dates below to search cabins, mountain lodges, and hotels on Booking.com.
Disclosure: HotSpringsFind may earn a commission from qualifying bookings made through these links — at no extra cost to you.
Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Roystone Hot Springs? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!