Bonneville Hot Springs lies within the scenic Boise National Forest along Warm Springs Creek, 20 miles northeast of Lowman. This peaceful spot offers forest views, steaming waterfalls, scalding mineral streams, and a fun soaking experience.

An easy 0.4-mile trail begins near the campground and parking area, winding along the creek through a forest of towering Ponderosa pine and Douglas fir to the geothermal field. At the end of your hike, you will see hot water emerges from the ground, forming multiple streams and puddles. Those might be scalding hot, so be careful when you walk.

Bonneville Hot Springs Experience

Geothermal mineral water comes from multiple springs emerging from the ground at temperatures reaching up to 180°F (82°C). The water flows down the hillside, forming scalding creeks and cascading waterfalls that spill from the bluff into Warm Springs Creek. A strong sulfur odor is very present.

When heading down to the creek and soaking pools, you will likely cross the hot stream that separates them. Use caution crossing it. Though the river water is coming here, some areas might be extremely hot and even scalding.

Rock-and-sand pools lining the creek are great places to soak. The hot water coming from the hillside mixes with river water, creating a range of temperatures for comfortable soaking. Water temperature can vary significantly, so always check before entering, and feel free to add more river water if needed.

For a different hot spring experience, bathe in the old wooden "soak shack" bathhouse with an antique cast iron bathtub. The water in a bathtub is around 104°F (40°C), and you need to drain the tub after each use.

Please remember that nude soaking and soap use at the springs are prohibited in the Lowman Ranger District of the Boise National Forest. Pets and glass containers are also not allowed at or near the spring.

The area along Highway 21 and 17, known as the Ponderosa Pine Scenic Byway and the Banks-Lowman Highway, is famous for its numerous natural hot springs. If traveling west from Bonneville Hot Springs on these byways, you can stop at Kirkham Hot Springs, Haven Hot Springs, Pine Flats Hot Springs, and Campground Hot Springs, all of which are conveniently located near the road.

Both byways offer breathtaking scenic views, abundant wildlife watching opportunities, historical information kiosks, and several hiking trail options.

Fishing in the creek and the South Fork Payette River is popular, and the South Fork Payette River offers opportunities for whitewater rafting and kayaking.

The campground is located along the creek's bank and is open from May through September. It features 22 primitive single sites and 1 double site, each equipped with picnic tables and grills. There are no RV hookups. Vault restrooms and drinking water are available.

The nearest lodging options can be found in Stanley and Lowman.

Affordable vacation rentals for short and long term stay at Lowman

Mountain Village Lodge in Stanley, which has its own hot springs

Sourdough Lodge in Lowman

Numerous accommodation options in Idaho City