About Sullivan Hot Springs
Sullivan Hot Springs offers a rustic soak nestled along the winding Salmon River in Custer County, Idaho. This warm spring presents a raw, natural atmosphere where clear, soothing waters invite you to unwind amidst rugged river scenery. Its remote location enhances the sense of solitude found at this Idaho swimming hole.
Getting There
Reaching Sullivan Hot Springs requires a bit of adventure: access is by a rough, unpaved road near Clayton, with parking limited and informal. From there, you’ll follow a short trail down to the riverbank, so prepare for uneven terrain and possible muddy conditions after rain.
What to Expect
The pools at Sullivan Hot Springs are primitive and unmaintained, formed naturally by river rocks. Water temperatures linger pleasantly warm but can vary with the season and river flow. You’ll find a quiet, serene setting with few visitors, but no developed facilities—bring your own supplies for a back-to-nature experience.
Tips for Visitors
Visit during late spring through early fall for milder conditions and manageable water levels. Pack sturdy shoes for the trail and bring water and snacks, as there are no nearby services or fees. Respect this delicate environment by practicing Leave No Trace principles to keep the Idaho hot springs pristine.
