Idaho is chock-full of opportunities for adventure. From rugged mountain peaks to riverside trails, lakes, and everything in between, there’s no shortage of memorable ways to explore the Gem State. And on particularly warm days, what better way to stay cool than hanging out underground? As the weather warms up, you’ll definitely want to plan a day trip to one of the deepest caves in Idaho: Minnetonka Cave. Hiding in the teensy-tiny town of St. Charles in southeastern Idaho, a trip to this cave will result in an adventure you’ll never forget.

For a closer look at one of the most beautiful caves in Idaho, check out the below YouTube footage for a virtual tour that’s absolutely fascinating:

Have you visited the deepest cave in Idaho yet? This place is simply massive! Maybe you’re the type of person who prefers aboveground adventure. In that case, visit this aboveground cave in Idaho for a truly surreal experience.

OnlyInYourState may earn compensation through affiliate links in this article.

More to Explore

caves in Idaho

Is it possible to explore caves in Idaho?

Absolutely! Idaho is known for its gorgeous mountain peaks and above-ground attractions, so you may be surprised to learn that there are lots of caves to explore in Idaho. Some of the most interesting caves in Idaho include:

  • Hidden Mouth Cave -- a steep hike leads to this natural wonder in Mackay
  • Minnetonka Cave -- the above article's featured cave and one of the most fascinating natural wonders in southern Idaho
  • Niter Ice Cave -- a cave that formed when lava flow hardened
  • Shoshone Ice Cave -- a one-of-a-kind cave that has below-freezing temperatures year-round
  • Wilson-Butte Cave -- located near Jerome and looks deceivingly like a pile of rubble from the distance
  • Craters of the Moon -- an otherworldly landmark the size of Rhode Island
  • Darby Wind and Ice Caves -- located in eastern Idaho
  • Paris Ice Caves -- a wide cavern that's best explored in the summer; otherwise, may be filled with water


If you're fascinated by underground adventures, you'll find any of the above caves in Idaho worth checking out!

What are Idaho's top natural wonders?

Idaho is a large state, and it's positively brimming with unique natural wonders to explore. Some of the top natural wonders in Idaho include:

  • Lake Pend Oreille -- the single largest lake in Idaho, measuring 43 miles across
  • Bruneau Sand Dunes -- an untamed natural wonder that stands at 470 feet
  • Sawtooth Mountains -- made up of 57 peaks that measure over 10,000 feet high
  • The Great Idaho Rift -- a fascinating line of volcanic cones and lava vents running through Craters of the Moon National Monument
  • The Salmon River -- a 425-mile river also known as the River of No Return


Explore Idaho