Boise is located mere miles from the lush and diverse Boise National Forest, roadless wilderness forests, State Parks and BLM land. This makes Boise a prime basecamp for accessing a great many of Idaho’s unique soakable geothermal hot pools. Most hot springs near the Boise area are accessible year-round. Keep in mind that hot springs that are accessible from dirt Forest Service Roads north of Crouch are often snowbound from Nov/Dec until being re-opened by the Forest Service near the end of Apr/May.
Skinnydipper Hot Springs is a natural hot springs above the Banks-Lowman Highway in the Boise National Forest, reached by a steep 0.5-mile hike. It is closed to all use under a BLM closure order extended through February 2027.
Boiling Springs Hot Springs sits beside the historic Boiling Springs Guard Station at the end of a forest road north of Crouch, Idaho, in the Boise National Forest. Its rock-walled pools are fed by one of the most powerful geothermal sources in the Garden Valley backcountry.
Twin Springs Resort is a rustic, off-grid hot springs resort on the Middle Fork of the Boise River northeast of Boise, established in 1898. Riverfront cabins from $160 per night each have a private hot tub, with a shared sauna for guests.
Silver Creek Plunge is a remote mountain hot springs resort in the Boise National Forest north of Crouch, Idaho, built around a large geothermal pool kept near 100°F. Cabins, A-frames and campsites make it a Garden Valley base camp; day swim is $15 for adults.
Bonneville Hot Springs is a natural hot springs in the Boise National Forest, 19 miles southeast of Lowman, Idaho, reached by a 0.25-mile trail along Warm Springs Creek. User-built rock-walled pools and a private soak shack with a cast-iron bathtub sit below the Bonneville Campground.
Fire Crew Hot Springs is a set of user-built, rock-walled soaking pools on the Middle Fork of the Payette River in the Boise National Forest, north of Crouch, Idaho. The road is snow-covered until about late May, and the pools submerge during spring runoff.
Kirkham Hot Springs is a popular Forest Service hot springs on the South Fork of the Payette River near Lowman, Idaho, known for its shallow rock pools and hot waterfalls. Day use is free; the site is open 7 AM–9 PM with no overnight camping.
Rocky Canyon Hot Springs is a series of tiered, user-built pools on the far bank of the Middle Fork of the Payette River, north of Crouch, Idaho. Reaching them requires a cold ford of the river; the pools are best after spring runoff.
Pine Flats Hot Springs is a string of natural hot pools beside the South Fork of the Payette River near Lowman, Idaho, reached by a 0.25 to 0.75-mile hike from Pine Flats Campground. The pools are usable all winter.
Campground Hot Springs is a roadside soak on the South Fork of the Payette River, across the Banks-Lowman Highway from Hot Springs Campground east of Garden Valley, Idaho. Its main rock-lined pool runs about 110°F, reached by a staircase from the road.