The Springs
- From $30
- 1 hr 1 min from Boise
- Reservations required
A geothermal soaking venue on Highway 21 about a mile south of Idaho City, with an 80 by 40 ft main pool, a hot tub and private tubs. All visits are by reservation in 2.5-hour sessions, and several days and evenings are adults-only. Poolside food, beer and wine are served, and the owners run Inn The Pines lodging a third of a mile away.
- Price
- From $30
- Nearest town
- Idaho City
- From Boise
- 1 hr 1 min
- Reservations
- Required
Plan your visit
Hours & season
| Hours |
|
|---|---|
| Season | Open year-round |
Tickets & booking
| Price |
|
|---|---|
| Access | Reservation required |
| Booking |
|
| Time limit | 2.5 hours per visit |
Rules
| Swimwear |
|
|---|---|
| Ages |
|
On site
| Lodging | No |
|---|
Not stated by the venue: dogs.
Water temperature
This venue doesn't publish pool temperatures.
Mineral profile
Total dissolved minerals
219 mg/L
Lightly mineralized · Sodium–sulfate (sodium sulfate water)
- pH
- 9.45
- Temp at source
- 108°F
- Lithium
- 0.03 mg/L
- Fluoride
- 13 mg/L
- Boron
- 0.05 mg/L
Lab analysis of the source water at “06n 05e 33adc1s Idaho City Wm Sps”, sampled 1981 by the USGS and partners (data). Pool water may be cooled, mixed or treated, and spring chemistry is generally stable over decades. We report measurements only; we don't make health claims.
The pools
| Pool | Temp |
|---|---|
| Main pool80 x 40 ft geothermal pool | — |
| Hot tub | — |
| Private tubsprivate18+ only, up to 4 adults, clothing optional; $70/hr | — |
As published by the venue. Temperatures shift with the seasons and the weather.
Facilities
- Showers: yes
- Lockers: yes
- Towel rental: no
- Towels included: no
- Food on site: yes
- Drinks / bar: yes
- Massage: yes
| Accessibility |
|
|---|---|
| Bring your own alcohol | Not allowed |
| Good to know |
|
What's here
- 80 x 40 ft geothermal main pool
- hot tub
- private soaking tubs (18+)
- steam room (temporarily closed for improvements)
- poolside food, beer and wine
- massage
- Inn The Pines lodging 1/3 mile away (same owners)
- live music Mon and Thu afternoons
Getting there
- From Boise1 hr 1 min39 mi
- From Boise (BOI)57 min37 mi
Typical driving time without traffic or snow.
| Elevation | 3,847 ft |
|---|---|
| Road |
|
Things to do near Idaho City
Lucky Peak State Park
Reservoir park on Highway 21 near Boise with swimming, boating and a marina
Campgrounds
- Grayback Gulch0.7 mi
- Bald Mountain Campground7.8 mi
- Ten Mile9.4 mi
- Bad Bear Campground9.7 mi
Trailheads
- Buena Vista Trailhead1.4 mi
- Thorn Creek Access5.1 mi
- Cottonwood S Trailhead10.9 mi
- Moores Creek Summit Trailhead12.5 mi
Straight-line distances. Campground and trailhead data © OpenStreetMap contributors.
Nearby springs
Hot Springs Campground Hot Spring
A natural hot springs soaking pool on the South Fork Payette River, across the Banks-Lowman Road from the Forest Service's Hot Springs Campground and down a staircase. The campground east of Garden Valley is open from early May to the end of September and is reserved through Recreation.gov.
Pine Flats Hot Springs
Riverside soaking pools below a hot waterfall on a cliff above the South Fork Payette River, reached by a quarter-mile nature trail from the Forest Service's Pine Flats Campground west of Lowman. The campground runs end of May to end of September. In winter the gate is closed and visitors walk the road.
Haven Hot Springs
A roadside stop on Highway 21 near Kirkham with a 1951 pool, about 75 by 30 feet, fed by flowing thermal water and hotter on one side (101-104°F) than the other (85-98°F). The pool is booked as a private soak by the hour, and each of the four motel rooms has its own soaking tub. RV and tent sites are on site.
Hot Springs Campground Hot Spring: 17 mi · Pine Flats Hot Springs: 19 mi · Haven Hot Springs: 24 mi
Sources (6)
· checked November 2026
Prices, hours and rules are checked against the official site and land-agency pages. Spot something out of date? Let us know.