Nat Soo Pah Hot Springs, Idaho: Pools vs Camping

What Nat Soo Pah is

This is a developed hot springs pool and campground, not a wild soak. The property sits at 2738 E 2400 N outside Twin Falls, has been a southern Idaho fixture for generations, and runs a grassy, tree-shaded campground alongside the pools. Expect lifeguards, a snack bar and shared pool space rather than solitude.

That model sets your expectations. You come for easy water access, family facilities and a place to camp, and you trade away the quiet and scenery of a hike-in spring. Groups with young swimmers usually find that trade worth it; solo soakers looking for silence usually do not.

Getting there

Nat Soo Pah is a few miles off US 93 and roughly 15 miles out of Twin Falls, so it works as a quick detour on a southern Idaho road trip or as an overnight stop on the way to or from the Magic Valley. Approach via US 93 and follow the address to the campground entrance.

Because it sits low on the Snake River Plain, this is a year-round-road destination with no mountain pass to worry about. It also pairs easily with other water stops in the region: Bear River Hot Springs, Idaho in the Riverdale Valley is another developed soak worth comparing if you want more pool time on the same trip.

The pools

The complex is really several pools in one: a large main swimming pool with a water slide, a spa, and a hotter soak tub. A 2020 visitor review described a pool around 92 degrees, a spa at 101 and a hot soak tub at 105, but treat those as visitor-reported rather than operator-posted figures. The same review noted two diving boards including an eight-foot high dive, so swimming ability and posted depth rules matter for kids.

The hot spring water is what gives the main pool its warmth. A 2005 forum post described spring water entering the pool at about 95 degrees before being cooled with additional water. That means the big pool is comfortably warm rather than scalding, and the hotter soak tub is where you go for real heat.

Plan around the pool rather than drifting between features. Families with young children usually camp near the main pool and slide; adults wanting the soak tub should aim for quieter hours when the diving boards and slide are less busy.

Camping

The campground has 75 sites, according to AdventureGenie's listing for Nat Soo Pah Hot Springs & RV Park, with a mix of full-hookup and partial-hookup sites plus tent space. A 2020 visitor reported full hookups in 20 sites, with water-and-electric-only sites making up the rest. Max site size listed is around 35 feet, so measure your rig before booking a pull-through.

Amenities listed include a bathhouse, showers, restrooms, a dump station, potable water, fire pits and a recreation hall. A reviewer from 2021 singled out the snack bar and friendly hosts, though the same reviewer felt the showers needed improvement. Set expectations for a working family campground rather than a resort.

Season and daily rhythm

The campground is described as open from May 1 into October by AdventureGenie's campground summary, which also notes the property hosts family events, parties and group gatherings. Summer weekends are the busiest, with the slide and diving boards drawing the biggest crowds in mid-afternoon.

A sensible soak-and-stay day runs: set up camp in the morning, swim through the hot part of the afternoon, eat at the concession stand, then use the soak tub in the evening when the pools quiet down. If you want the main pool mostly to yourself, aim for a weekday morning.

Fees

Camping and pool entry are separate costs, and that is where most budgeting mistakes happen. Visitors in 2020 reported site rates around $35 for full hookups and $20–$25 for water-and-electric-only sites, per ParkAdvisor's visitor reviews, but rates change, so confirm the current nightly rate when you call (208) 655-4337.

Swimming and pool activities are described as costing extra beyond the campsite fee. That means a family of four should budget both a site fee and a per-swimmer charge, and should ask at the office what is included with a site versus paid separately.

Rules and family logistics

Lifeguards are on duty at the pools, per AdventureGenie's description, which matters for families with weak swimmers. Posted rules cover pool conduct, supervision and shared-space etiquette; read them at the gate.

Geothermal water is untreated, so keep heads above the surface in the soak tub and spa, and watch children around the hotter water. Diving boards and the slide have depth and age rules posted on site. If you need current pool hours or a rule clarified before you drive out, call the campground office directly.

Facilities

The bathhouse, showers, restrooms, dump station and potable water make this a practical overnight stop for RVers. The concession stand sells basics like pizza, corn dogs, ice cream and candy, so you can eat on site instead of driving back into Twin Falls mid-day. A recreation hall and fire pits round out the shared spaces.

Crowds and timing

This is a popular family destination, and the pool complex fills on summer weekends. Campground reviewers have described the property as feeling cramped when full, so choose midweek visits or shoulder-season dates if space matters to you. Late September, before the October close, is a strong compromise for warm water and smaller crowds.

Nearby springs and stops

Nat Soo Pah makes a good anchor for a southern Idaho hot springs tour. Compare it with Bear River Hot Springs, Idaho for a second developed soak, or read the broader hot springs guide if you want to add a hike-in option like Kirkham Hot Springs along the Payette. If you are mapping a longer soak-and-camp loop across state lines, the Utah hot springs guide covers developed resorts and wild soaks south of here. Twin Falls itself supplies groceries, fuel and any gear you forgot.

Packing for a hot-spring pool day with kids

Pack swimsuits, towels, water shoes for slippery pool decks, sun protection and a change of clothes. Bring refillable water bottles and snacks for between swims, and a waterproof bag for phones around the pool. For camping, add your usual hookup gear, leveling blocks and layers, since southern Idaho evenings cool off quickly.

Plan Your Visit

Nat Soo Pah Hot Springs is the right choice when your group wants warm geothermal water, a slide, diving boards and a place to camp without a hike. It is the wrong choice if you want a wild soak, so set expectations accordingly.

Reserve a site, plan a weekday swim, and budget pool entry separately from camping. Check current rates, pool hours and season dates with the campground office at (208) 655-4337 before you drive out.