Nat-Soo-Pah Hot Springs

What to expect

Nat-Soo-Pah Hot Springs is a summer swim park and campground in the farm country south of Twin Falls, a few miles east of Hollister and US Highway 93. The slug for this page uses the spelling Nat-Su-Pa, but the operator writes Nat Soo Pah and federal maps list the source as Nat-Soo-Pah Warm Spring. They are all the same place.

The name is usually translated as “Magic Mineral Water.” Visit Idaho notes that Shoshone people lived in the nearby foothills and used the spring for bathing. The operator says families have been coming here for more than 100 years. One published guide dates swimming pools on the site to the 1920s and the current campground business to about 1976.

This is a swimming pool first and a soak second. Mineral water comes out of the ground at about 100°F38°C and feeds three pools:

• Swimming pool: A large pool, listed at 125 by 50 feet, at about 92°F33°C. Guides describe a 90-foot water slide and two diving boards.
• Hot soaking pool: Heated further to about 104-106°F40-41°C.
• Jetted tub: A hydro jet soaking tub at about 100°F38°C with strong jets.

The swimming pool and hot pool are chlorinated. The jetted tub is not. Certified lifeguards are on staff during pool hours, and a snack bar sells drinks and food. Expect a lively, kid-heavy crowd on summer weekends; reviewers on camping sites mention the pool getting busy during heat waves.

Getting there

The address is 2738 E 2400 N, Twin Falls, ID 83301, though the park is well outside the city.

• From Twin Falls: Drive south on US Highway 93 for about 16 miles toward Hollister. The park is about 3.5 miles east of Hollister, off US-93. Follow the signs onto the local road grid; East 2400 North leads to the entrance.
• From Nevada: Coming north on US-93 from Jackpot, watch for Hollister, the last small town before Twin Falls, and turn east toward the park.

The roads are paved and an ordinary car is fine. Parking is on site. If you are camping, a truck and trailer count as one vehicle, and each extra vehicle is $10 per night.

When to go

The pool runs May 1 to Labor Day every year. For 2027 the operator lists May 1 to September 6. Outside that window the pool is closed for the season, which is normal here and not a closure. The campground stays open later, until about October 15.

Early season (May and early June) is the calmest time. Nights can be cool, and the warm water feels good.

Midsummer is hot and dry on the Snake River Plain, and that is when local families pile in. Weekday afternoons are quieter than weekends.

Daily hours are not published between seasons. Call (208) 655-4337 before you go, especially early or late in the season.

Prices and booking

Swim prices from the operator’s site:

Ticket	Price
Ages 6 and up	$12
Ages 1-5	$5
Non-swimmers who are not camping	$2

• Family passes: For the 2026 season the park sold family season passes (up to 2 adults per pass) starting at $160. Check the swim page for 2027 rates.
• Camping: Charged separately from the pool, and campers who swim still pay admission. The camping page links to a dated price sheet, so call for current site rates.
• Pavilions: Reservations are recommended for parties, reunions, church groups and company events.

Rules and tips:

• Wear a swimsuit. This is a family pool with lifeguards.
• Bring sunscreen. The operator recommends it, and the pools are outdoors.
• The operator posts its full pool rules on the website. Read them before you go if you are bringing a group.

Where to stay nearby

On site. The Nat-Soo-Pah campground is grassy with plenty of shade trees and a small creek. Full hookup RV sites run on 30 amp power when available, and not every site is a pull-through. Tent campers get a separate grassy area. Amenities include natural spring showers, restrooms, a dump station, horseshoe pits, fire pits at some sites (bring-your-own fire pits must sit off the ground) and pavilions. One published guide lists 75 sites, 29 of them with full hookups. Leashed dogs are allowed if you clean up after them. Call to reserve.

Reviewers note that sites are close together and that weekends can be noisy, so ask for a spot away from the pool if you want a quiet night.

Hotels. The closest hotels, restaurants and full services are in Twin Falls, about 16 miles north.

Safety notes

• Hot pool: At 104-106°F40-41°C, keep soaks short and get out if you feel light-headed, especially after a day in the summer sun.
• Heat: Summer afternoons on the Snake River Plain are hot and dry. Drink water and use sunscreen.
• Kids: Lifeguards are on duty, but they do not replace a parent. Keep small children within reach, especially near the slide and diving boards.
• Chlorine: The two main pools are treated. The jetted tub is the chemical-free option.

Nearby stops worth adding

Twin Falls is the base for the Snake River Canyon, including Shoshone Falls and the Perrine Bridge. West of Twin Falls, the Thousand Springs area along the Snake River has other long-running hot spring pools, including 1000 Springs Resort near Hagerman, open well beyond Nat-Soo-Pah’s summer season. Banbury Hot Springs near Buhl has been temporarily closed since October 2022, so check before you go.