Descend into these remarkable lava tubes where ice formations persist throughout the year, even when it’s 100°F on the surface above. The caves maintain a constant 40°F temperature, formed by ancient lava flows that created these natural refrigeration chambers. Guided tours lead visitors through narrow passages lined with ice formations and strange volcanic rock textures. The contrast between the scorching Idaho desert and the icy underground world is genuinely surreal.
Located just off Highway 75 south of Shoshone, the caves operate seasonally from May through September. Tours run regularly but can fill up during peak summer months. The entrance requires a short walk from the parking area, and sturdy shoes are essential for the uneven cave floors.
Year-round ice formations in ancient lava tubes
Place Details
| Type | Point of Interest |
|---|---|
| Street address | Idaho Get directions → |
| Nearest town | Shoshone, Idaho |
| Miles from pavement | 0.5 mi |
| Minimum vehicle | Any vehicle |
| Access road surface | Paved |
| Cell service | Partial |
| Cost (USD/night, 0 = free) | $15.00 / night |
| Reservation required | No |
| Best season | May-September |
| Land manager | Private |
| Permit required | No |
| Amenities | Toilets |
| Coordinates | Open directions |
| Find on Google | Search on Google → |