Boiling Springs is a scenic geothermal site along the Middle Fork Payette River in the Boise National Forest. Known as one of the hottest soaking spots in the area, it's a favorite among outdoor adventurers seeking a rustic, back-to-nature experience.

To reach the hot spring, hike about 0.25 miles from the nearby Boiling Springs Campground. The trail is easy and straightforward. Soon, you'll arrive at a scenic geothermal landscape with steaming water and rustic charm. Historic guard station buildings now serve as cabins, available for overnight reservations right beside the spring.

While the hot spring is open year-round, snow often makes the forest service road impassable from late fall through late May, so plan your visit accordingly.

Boiling Springs Geothermal Site

Geothermal water emerges from the source at an intense 175°F and flows down the cliff into the small stream, gradually filling pools on the way. The number and shape of pools vary with the season. The main pool is a rock-and-concrete structure with a sand and gravel bottom. Additional pools closer to the river are volunteer-built, though these are often affected or destroyed by spring runoff.

Some pools are fed directly by the hot spring, while others receive water via makeshift piping. Always test the water temperature before entering, as it can be dangerously hot. It’s helpful to bring a bucket or container to cool down the pool with river water if needed.

The local ranger district prohibits nudity, so wearing a swimsuit is required.